Unable to delete large folder, now calendar empty

I am completely gutted: Some days ago I attempted to upload a new backup to my ownCloud server. In order to do this, I first attempted to delete the existing backup folder (8.4 GB) using the ownCloud folder of my Linux file manager. When that did not work, I logged on to the server itself, yet could still not delete the folder in question.

When I was attempting to change an appointment in my ownCloud calendar today, I had to discover that the calendar is now virtually empty and all appointments have disappeared. I am minded to uninstall ownCloud and use a commercial service.

I also would like to say that I feel uncomfortable posting all those log files here since I am unsure what data is necessary and what could aide attackers.

Before reporting any issues please make sure that you're using the latest available version for your major branch (e.g. 9.0.x), see https://owncloud.org/changelog/
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Steps to reproduce

1.
2.
3.

Expected behaviour

Tell us what should happen

It should be possible to delete the folder in question. The appointments should be visible in my calendar.

Actual behaviour

Tell us what happens instead

It is not possible to delete the folder. Calendar is not visible.

Server configuration

Operating system:
Unknown

Web server:
Unknown

Database:
Unknown

PHP version:
Unknown

ownCloud version: (see ownCloud admin page)
10.0.4 (stable)

Updated from an older ownCloud or fresh install:
Updated

Where did you install ownCloud from:
Installatron

Signing status (ownCloud 9.0 and above):

Login as admin user into your ownCloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results into https://gist.github.com/ and puth the link here.
``Integrity checker has been disabled. Integrity cannot be verified."


**The content of config/config.php:**
'oc478mpt01qz', 'gagaPassword3' => '/bN3h5uxNkNaSlZDTTzQx7gWEGqrcB', 'gagagaga' => 'MrK7NU/sFeEoRPZOU7kf/2rAgnPOydQTSyB4lCzAFdcDQ2J0', 'trusted_domains' => array ( 0 => 'gagasubdomain.gagadomain.com', ), 'datadirectory' => '/home/username/domains/gagadomain.com/private_html/owncloud/files/.htj4b2eurb1ood.data', 'overwrite.cli.url' => 'https://gagasubdomain.gagadomain.com/files', 'dbtype' => 'mysql', 'version' => '10.0.4.4', 'dbname' => 'username_ownc1', 'dbhost' => 'localhost', 'dbtableprefix' => 'ownc_', 'dbuser' => 'username_ownc1', 'gagagagaga' => 'S~N)ipTZFcLd(c@Ook@21[]4', 'logtimezone' => 'UTC', 'installed' => true, 'theme' => '', 'loglevel' => 0, 'maintenance' => false, );

Log in to the web-UI with an administrator account and click on
'admin' -> 'Generate Config Report' -> 'Download ownCloud config report'
This report includes the config.php settings, the list of activated apps
and other details in a well sanitized form.

Comment: This option is unavailable in my version. Please specify.

or

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your ownCloud installation folder

ATTENTION: Do not post your config.php file in public as is. Please use one of the above
methods whenever possible. Both, the generated reports from the web-ui and from occ config:list
consistently remove sensitive data. You still may want to review the report before sending.
If done manually then it is critical for your own privacy to dilligently
remove all host names, passwords, usernames, salts and other credentials before posting.
You should assume that attackers find such information and will use them against your systems.

'oc478mpt01qz', 'gagaPassword3' => '/bN3h5uxNkNaSlZDTTzQx7gWEGqrcB', 'gagaga' => 'MrK7NU/sFeEoRPZOU7kf/2rAgnPOydQTSyB4lCzAFdcDQ2J0', 'trusted_domains' => array ( 0 => 'gagasubdomain.gagadomain.com', ), 'datadirectory' => '/home/username/domains/gagadomain.com/private_html/owncloud/files/.htj4b2eurb1ood.data', 'overwrite.cli.url' => 'https://gagasubdomain.gagadomain.com/files', 'dbtype' => 'mysql', 'version' => '10.0.4.4', 'dbname' => 'username_ownc1', 'dbhost' => 'localhost', 'dbtableprefix' => 'ownc_', 'dbuser' => 'username_ownc1', 'gagagagaga' => 'S~N)ipTZFcLd(c@Ook@21[]4', 'logtimezone' => 'UTC', 'installed' => true, 'theme' => '', 'loglevel' => 0, 'maintenance' => false, );


**List of activated apps:**

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your ownCloud installation folder.

**Are you using external storage, if yes which one:** local/smb/sftp/...
No

**Are you using encryption:** yes/no
Yes

**Are you using an external user-backend, if yes which one:** LDAP/ActiveDirectory/Webdav/...

#### LDAP configuration (delete this part if not used)

With access to your command line run e.g.:
sudo -u www-data php occ ldap:show-config
from within your ownCloud installation folder

Without access to your command line download the data/owncloud.db to your local
computer or access your SQL server remotely and run the select query:
SELECT * FROM oc_appconfig WHERE appid = 'user_ldap';

Eventually replace sensitive data as the name/IP-address of your LDAP server or groups.

### Client configuration
**Browser:**

**Operating system:**

### Logs
#### Web server error log

Insert your webserver log here

#### ownCloud log (data/owncloud.log)
{"reqId":"WjUX8wJiCg8sVIHK04qTeQAAAH0","level":2,"time":"2017-12-16T12:56:19+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/files\/gagaUsername2\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSQJiCg8sVIHK04qWWQAAAGU","level":2,"time":"2017-12-16T12:57:46+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSQJiCg8sVIHK04qWWgAAAHY","level":2,"time":"2017-12-16T12:57:46+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSQJiCg8sVIHK04qWWwAAAFA","level":2,"time":"2017-12-16T12:57:46+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSQJiCg8sVIHK04qWXAAAAEg","level":2,"time":"2017-12-16T12:57:46+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSwJiCg8sVIHK04qWaAAAAHo","level":2,"time":"2017-12-16T12:57:48+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSwJiCg8sVIHK04qWaQAAAHM","level":2,"time":"2017-12-16T12:57:48+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSwJiCg8sVIHK04qWagAAAFU","level":2,"time":"2017-12-16T12:57:48+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYSwJiCg8sVIHK04qWawAAAEY","level":2,"time":"2017-12-16T12:57:48+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUYyAJiCg8sVIHK04qa6gAAAG0","level":3,"time":"2017-12-16T12:59:53+00:00","remoteAddr":"gagaIP","user5456":"gagaUsername2","app":"PHP","method":"GET","url":"\/files\/index.php\/settings\/gagaUsername2?sectionid=general","message":"opendir(\/home\/gagaDirectory2\/domains\/gagaDirectory\/private_html\/owncloud\/files\/themes): failed to open dir: No such file or directory at \/home\/gagaDirectory2\/domains\/gagaDirectory\/private_html\/owncloud\/files\/apps\/templateeditor\/lib\/mailtemplate.php#155"}
{"reqId":"WjUaoAJiCg8sVIHK04qmLgAAAH8","level":2,"time":"2017-12-16T13:07:45+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUaoAJiCg8sVIHK04qmKwAAAGo","level":2,"time":"2017-12-16T13:07:45+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUaoAJiCg8sVIHK04qmLQAAAF8","level":2,"time":"2017-12-16T13:07:45+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUaoAJiCg8sVIHK04qmLAAAAEk","level":2,"time":"2017-12-16T13:07:45+00:00","remoteAddr":"gagaIP","user5456":"--","app":"core","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Login failed: 'gagaUsername2' (Remote IP: 'gagaIP')"}
{"reqId":"WjUaogJiCg8sVIHK04qmOAAAAGw","level":4,"time":"2017-12-16T13:07:47+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUaogJiCg8sVIHK04qmOQAAAGs","level":4,"time":"2017-12-16T13:07:47+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUaogJiCg8sVIHK04qmOgAAAGA","level":4,"time":"2017-12-16T13:07:47+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUaogJiCg8sVIHK04qmOwAAAGI","level":4,"time":"2017-12-16T13:07:47+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUa4QJiCg8sVIHK04qn9wAAAHY","level":3,"time":"2017-12-16T13:08:49+00:00","remoteAddr":"gagaIP","user5456":"gagaUsername2","app":"PHP","method":"GET","url":"\/files\/index.php\/settings\/gagaUsername2?sectionid=general","message":"opendir(\/home\/gagaDirectory2\/domains\/gagaDirectory\/private_html\/owncloud\/files\/themes): failed to open dir: No such file or directory at \/home\/gagaDirectory2\/domains\/gagaDirectory\/private_html\/owncloud\/files\/apps\/templateeditor\/lib\/mailtemplate.php#155"}
{"reqId":"WjUbXgJiCg8sVIHK04qqXwAAAFo","level":4,"time":"2017-12-16T13:10:55+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/files\/gagaUsername2\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUbaAJiCg8sVIHK04qqggAAAFo","level":4,"time":"2017-12-16T13:11:05+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/files\/gagaUsername2\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(234): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(31): OCA\\\\DAV\\\\Server->exec()\\n#8 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/remote.php(165): require_once('\\\/home\\\/gagaDirectory3...')\\n#9 {main}\",\"File\":\"\\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Connector\\\/Sabre\\\/Auth.php\",\"Line\":156,\"user5456\":false}"}
{"reqId":"WjUbdQJiCg8sVIHK04qrTQAAAH8","level":4,"time":"2017-12-16T13:11:17+00:00","remoteAddr":"gagaIP","user5456":"--","app":"webdav","method":"PROPFIND","url":"\/files\/remote.php\/dav\/files\/gagaUsername2\/","message":"Exception: {\"Message\":\"HTTP\\\/1.1 503 OC\\\\user5456\\\\LoginException: Too many failed login attempts. Try again in 5 minutes.\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(199): OCA\\\\DAV\\\\Connector\\\\Sabre\\\\Auth->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Auth\\\/Plugin.php(150): Sabre\\\\DAV\\\\Auth\\\\Plugin->check(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#2 [internal function]: Sabre\\\\DAV\\\\Auth\\\\Plugin->beforeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user5456_func_array(Array, Array)\\n#4 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(466): Sabre\\\\Event\\\\EventEmitter->emit('beforeMethod', Array)\\n#5 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/lib\\\/composer\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/home\\\/gagaDirectory2\\\/domains\\\/gagaDirectory\\\/private_html\\\/owncloud\\\/files\\\/apps\\\/dav\\\/lib\\\/Server.php(
Insert your ownCloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log 
c) ...