Too many files on /data compared to local drive

On my own shared server webspace the /data-directory is alway bigger than the synced "equivalent" on my local drive: 170 to 120 GB. When I browse the /data-directory with my providers statistic tool I can see a plenty of directories that probably have existed somewhen, but then have gotten deleted or at least moved.
So: I am not talking of the GB the trash bin or the versions-folder ist taking!

Does anyone know how to solve that problem?
Thanks for a link or so, I cant imagine I am the first one, but couldn't finde something else )-;

Server configuration
Operating system: os x
Web server: apache I think. Its a pretty standard provider!
Database:
PHP version:
ownCloud 8.2.9 (stable)
Updated from an older ownCloud or fresh install: updated

ownCloud log (data/owncloud.log)

mhh..yummie..here is eventually why: I just realice there is a 27 MB-Logfile (since Sept. 2015). The last 40% show this type of error:

{"reqId":"WIpnslUNgA4AAHTc4XUAAAAF","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_06_Dithmarscher_Landeszeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:18:42+01:00"}
{"reqId":"WIpn@VUNgA4AAA6YSJ0AAAAB","remoteAddr":"12.12.123.456","app":"PHP","message":"opendir(\/tmp): failed to open dir: Permission denied at \/www\/htdocs\/swswsws\/xxxxx.com\/lib\/private\/tempmanager.php#186","level":3,"time":"2017-01-26T22:19:53+01:00"}
{"reqId":"WIpoBVUNgA4AAAwCOvMAAAAH","remoteAddr":"12.12.123.456","app":"PHP","message":"opendir(\/tmp): failed to open dir: Permission denied at \/www\/htdocs\/swswsws\/xxxxx.com\/lib\/private\/tempmanager.php#186","level":3,"time":"2017-01-26T22:20:05+01:00"}
{"reqId":"WIpoB1UNgA4AAHzwAC8AAAAG","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_Nordwest_Zeitung_Wesermarsch_Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:20:07+01:00"}
{"reqId":"WIpoB1UNgA4AAHzwADAAAAAG","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_blickpunkt_zum_sonntag_Landkreis_Nienburg.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:20:07+01:00"}
{"reqId":"WIpoCFUNgA4AABo4VUcAAAAB","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_Wilhelmshavener_Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:20:08+01:00"}
{"reqId":"WIpoCFUNgA4AABo5VigAAAAD","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_06_Nordwest-Zeitung_Wesermarsch-Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:20:09+01:00"}
{"reqId":"WIpoCFUNgA4AABo4VUgAAAAB","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_06_Dithmarscher_Landeszeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:20:09+01:00"}
{"reqId":"WIpoW1UNgA4AACWOEaMAAAAW","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_Nordwest_Zeitung_Wesermarsch_Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:21:31+01:00"}
{"reqId":"WIpoW1UNgA4AACWSE3oAAAAa","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_06_Dithmarscher_Landeszeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:21:31+01:00"}
{"reqId":"WIpoW1UNgA4AACWREwsAAAAZ","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_06_Nordwest-Zeitung_Wesermarsch-Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:21:31+01:00"}
{"reqId":"WIpoW1UNgA4AACWQEpkAAAAY","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_Wilhelmshavener_Zeitung.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:21:31+01:00"}
{"reqId":"WIpoW1UNgA4AACWTE@UAAAAb","remoteAddr":"12.12.123.456","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 423 \\\"\\u00d6A MT16\\\/__Pressespiegel\\\/_print\\\/2016_09_03_blickpunkt_zum_sonntag_Landkreis_Nienburg.tiff\\\" is locked\",\"Exception\":\"OC\\\\Connector\\\\Sabre\\\\Exception\\\\FileLocked\",\"Code\":0,\"Trace\":\"#0 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Tree.php(179): OC\\\\Connector\\\\Sabre\\\\File->delete()\\n#1 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php(287): Sabre\\\\DAV\\\\Tree->delete('\\\\xC3\\\\x96A MT16\\\/__Pres...')\\n#2 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpDelete(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#3 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#4 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(469): Sabre\\\\Event\\\\EventEmitter->emit('method:DELETE', Array)\\n#5 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(254): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#6 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/apps\\\/files\\\/appinfo\\\/remote.php(56): Sabre\\\\DAV\\\\Server->exec()\\n#7 \\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/remote.php(137): require_once('\\\/www\\\/htdocs\\\/w01...')\\n#8 {main}\",\"File\":\"\\\/www\\\/htdocs\\\/swswsws\\\/xxxxx.com\\\/lib\\\/private\\\/connector\\\/sabre\\\/file.php\",\"Line\":320}","level":4,"time":"2017-01-26T22:21:31+01:00"}
{"reqId":"WIp5eVUNgA4AAFUx1XgAAAAA","remoteAddr":"12.12.123.456","app":"PHP","message":"opendir(\/tmp): failed to open dir: Permission denied at \/www\/htdocs\/swswsws\/xxxxx.com\/lib\/private\/tempmanager.php#186","level":3,"time":"2017-01-26T23:34:33+01:00"}

Integrity status for oC9+

Login as admin user into your ownCloud and access
http://example.com/index.php/settings/integrity/failed
-> doenst work, it sends me to "files"

Hi,

a very good starting point would be if you evaluate on your own which files takes the additional space. This is something only you as the owner of this server can do, it can't be guessed by anyone in here.

The second "file is locked" message is thoroughly explained here:

Hey! Thanks for your reply!
The point is: As these files do not anymore exist on my local folder they're supposed to be old and should be deleted. Possibly they couldn't because of any lock-problems?! Deleting folders via online-ftp is difficult because the seem to remain in the original order whereas I have reorganiced and renamed them locally.
And to get this locked files problem solved my php skills are not enough or I need more time than I have at the moment )-;