Could not Web login

Hello,

I could not login on my Nextcloud server per Web Interface, nobody can login,
the Loglevel is 0.
This is the message in the log-file:

I have no idea to fix this problem, webdav works fine with the owncloud-client.

I hope everybody can help me.
Thanks

Nextcloud version (11.0.3RC2):
Operating system and version (Ubuntu 14.04):
Apache version (2.4.7):
PHP version (5.6.21-1):
Is this the first time you’ve seen this error?:
No, I could not login since Dec 2016.

Can you reliably replicate it? (If so, please outline steps):
Every time

The issue you are facing:

The output of your Nextcloud log in Admin > Logging:
{“reqId”:“xxxxxxxxxxx”,“remoteAddr”:“xxx.xxx.xxx.xx”,“app”:“no app in context”,“message”:“Current user is not logged in”,“level”:0,“time”:“April 18, 2017 14:35:23”,“method”:“GET”,“url”:"/nextcloud/index.php/apps/files/",“user”:"–",“version”:“11.0.3.1”}

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php $CONFIG = array ( 'instanceid' => 'occ___________', 'passwordsalt' => '9bc---------------------------------------------', 'trusted_domains' => array ( 0 => 'www.mydomain.de', ), 'datadirectory' => '/var/nextcloud_data', 'dbtype' => 'mysql', 'version' => '11.0.3.1', 'dbname' => 'ownloud', 'dbhost' => 'localhost', 'dbtableprefix' => 'oc_', 'dbuser' => 'oc_xxxxxxx', 'dbpassword' => '_________aaaaaaaa-----', 'installed' => true, 'forcessl' => true, 'theme' => '', 'maintenance' => false, 'log_type' => 'file', 'logfile' => '/var/nextcloud_data/nextcloud.log', 'loglevel' => 0, 'syslog_tag' => 'Nextcloud', 'apps_paths' => array ( 0 => array ( 'path' => '/var/www/nextcloud/apps', 'url' => '/apps', 'writable' => true, ), ), 'debug' => true, 'logdateformat' => 'F d, Y H:i:s', 'logtimezone' => 'Europe/Berlin', 'cron_log' => true, 'log_rotate_size' => false, 'user_webdavauth_url' => 'https://www.mydomain.de/nextcloud/remote.php/webdav', 'secret' => '-------------------?????????????????????????????????????--------------------------', 'share_folder' => '/Shared', 'mail_smtpmode' => 'php', 'mail_from_address' => 'nextcloud', 'mail_smtpauthtype' => 'PLAIN', 'mail_smtpauth' => 1, 'mail_smtphost' => 'smtp.XXXXXX.de', 'mail_smtpport' => '587', 'mail_smtpname' => '____________', 'mail_smtppassword' => '???????????', 'mail_smtpsecure' => 'tls', 'mail_domain' => 'maildomain.de', 'updatechecker' => false, 'trashbin_retention_obligation' => 'auto', 'overwrite.cli.url' => '/var/www/nextcloud', 'appstore.experimental.enabled' => true, 'memcache.local' => '\\OC\\Memcache\\APCu', 'default_language' => 'de', 'defaultapp' => 'files', ); The output of your Apache/nginx/system log in `/var/log/____`: NO ERRORS in apache and syslog file I had disable most APPS Enabled: - dav: 1.1.1 - federatedfilesharing: 1.1.1 - files: 1.6.1 - files_texteditor: 2.2 - lookup_server_connector: 1.0.0 - provisioning_api: 1.1.0 - twofactor_backupcodes: 1.0.0 - workflowengine: 1.1.1 Disabled: - activity - admin_audit - comments - encryption - external - federation - files_accesscontrol - files_automatedtagging - files_external - files_pdfviewer - files_retention - files_sharing - files_trashbin - files_versions - files_videoplayer - firstrunwizard - gallery - logreader - nextcloud_announcements - notifications - password_policy - serverinfo - sharebymail - survey_client - systemtags - templateeditor - theming - updatenotification - user_external - user_ldap - user_saml ---

After update to php7.1 it works.