Here the complete ownclod.log file
{“reqId”:“LpghsBK8wp2OEUZovdQn”,“level”:3,“time”:“2019-01-04T18:46:47+00:00”,“remoteAddr“:“x.x.x.x“,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“BzTOJNjcSO26itA87McU”,“level”:3,“time”:“2019-01-04T18:47:10+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“GQiSXIUz0h9k4njECCyN”,“level”:3,“time”:“2019-01-04T18:50:54+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“8sMspKQCZ5ZaHupZlG3U”,“level”:3,“time”:“2019-01-04T18:50:56+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“dUaJ4n5i5reeRfTF3UGR”,“level”:3,“time”:“2019-01-04T18:51:47+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“eywjZtarDRqHfFhQ5LqC”,“level”:3,“time”:“2019-01-04T18:58:11+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“DGF6DiLRQjBNuDHoVWjc”,“level”:3,“time”:“2019-01-04T19:07:35+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“WjLdDDAhBO8ag4vTo1Co”,“level”:3,“time”:“2019-01-04T19:28:56+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“RxJ51G3K8MKVrHwmvrrB”,“level”:3,“time”:“2019-01-05T14:28:33+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“bZy1W8YwhCWjmvUGniUD”,“level”:3,“time”:“2019-01-06T13:33:01+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“Tw8lbfp2wT1HpgGmfrTY”,“level”:3,“time”:“2019-01-06T13:33:04+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“IjgUFeqY8M7daVmHB8ng”,“level”:3,“time”:“2019-01-06T13:33:06+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“eMq7Oxm0H7fNpmV2HUdq”,“level”:3,“time”:“2019-01-06T13:48:07+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“POST”,“url”:"/owncloud/index.php/heartbeat",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“VmSORGuda4R2XVJk9Bza”,“level”:3,“time”:“2019-01-06T14:09:53+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“JWWrsiXENDJ442WZ1i8b”,“level”:3,“time”:“2019-01-06T14:09:59+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“y7R8QV2Fet24hYzZ7SkT”,“level”:3,“time”:“2019-01-06T14:10:02+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“Mi2hVr0i20vIHWoH56pQ”,“level”:3,“time”:“2019-01-06T14:10:03+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“16mHZ2NnXsjCLrVP5V6r”,“level”:3,“time”:“2019-01-06T14:10:04+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“D0KEwaSoMDCbpbJgrYl0”,“level”:3,“time”:“2019-01-06T14:11:26+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“z1a5wuvq8yDHQ9KZ9lci”,“level”:3,“time”:“2019-01-06T14:11:28+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“imbA8q6ScM7MgIffdeTz”,“level”:3,“time”:“2019-01-06T18:28:48+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“mo1YNLZS7wMcZJ2fCRvk”,“level”:3,“time”:“2019-01-06T18:29:07+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/owncloud/index.php",“message”:“You are using a fallback implementation of the intl extension. Installing the native one is highly recommended instead. at /var/www/html/owncloud/lib/composer/patchwork/utf8/src/Patchwork/Utf8/Bootup/intl.php#18”}
{“reqId”:“O7zDOEZVE6TTHdH5HlgI”,“level”:3,“time”:“2019-01-06T19:08:31+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“mysql.setup”,“method”:“POST”,“url”:"/owncloud/index.php",“message”:“Specific user creation failed: An exception occurred while executing ‘SELECT user FROM mysql.user WHERE user=?’ with params [\“XX\“]:\n\nSQLSTATE[42000]: Syntax error or access violation: 1142 SELECT command denied to user ‚XX‘@‚localhost’ for table ‘user’”}
{“reqId”:“O7zDOEZVE6TTHdH5HlgI”,“level”:3,“time”:“2019-01-06T19:08:47+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“no app in context”,“method”:“POST”,“url”:"/owncloud/index.php",“message”:"User backend OC\User\Database is returning home: /var/www/html/owncloud/data/XXX for user: XX which differs from existing value: "}
{“reqId”:“tydzSX69GmbXj7CXdAob”,“level”:2,“time”:“2019-02-01T11:43:48+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“core”,“method”:“POST”,“url”:"/owncloud/index.php/login",“message”:“Login failed: ‚EMAIL‘ (Remote IP: ‘x.x.x.x’)”}
{“reqId”:“ffiEypHl9Dkq2UJeQCiK”,“level”:2,“time”:“2019-02-01T11:44:18+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“core”,“method”:“POST”,“url”:"/owncloud/index.php/login?user=email%4.de",“message”:“Login failed: ‚E-Mail.de‘ (Remote IP: ‘x.x.x.x’)”}
{“reqId”:“pdGADPQQA9QpdJRgspmC”,“level”:2,“time”:“2019-02-01T12:10:33+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“core”,“method”:“GET”,“url”:"/owncloud/status.php",“message”:“Trusted domain error. “2.247.240.131” tried to access using “88.208.135.2” as host.”}
{“reqId”:“vBQCYhEXMwwl3s9RHTId”,“level”:2,“time”:“2019-02-01T17:09:28+00:00”,“remoteAddr”:“x.x.x.x”,“user”:"–",“app”:“core”,“method”:“POST”,“url”:"/owncloud/index.php/login",“message”:“Login failed: ‚XXX‘ (Remote IP: ‘x.x.x.x’)”}