WARN Piwik\Session[2017-12-18 12:28:25] [f4f3d] Unable to start session: Zend_Session::start() - /webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:469): Error #2 session_start(): open(/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/sess_2sbj2cadr4v4sa0vej15mtklbrtek437, O_RDWR) failed: Disk quota exceeded (122) Array/webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:479): Error #2 session_write_close(): open(/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/sess_2sbj2cadr4v4sa0vej15mtklbrtek437, O_RDWR) failed: Disk quota exceeded (122) Array/webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:479): Error #2 session_write_close(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions) Array
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Piwik # Web Analytics

Error: Unable to start session. Please check that the web server has enough permission to write to these files/directories:
For example, on a Linux server if your Apache httpd user is www-data, you can try to execute:
chown -R www-data:www-data /webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/
chmod -R 0755 /webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/

If you still experience issues after trying these changes, we recommend that you enable database session storage.

Debug: the original error was 
Zend_Session::start() - /webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:469): Error #2 session_start(): open(/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/sess_2sbj2cadr4v4sa0vej15mtklbrtek437, O_RDWR) failed: Disk quota exceeded (122) Array
/webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:479): Error #2 session_write_close(): open(/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions/sess_2sbj2cadr4v4sa0vej15mtklbrtek437, O_RDWR) failed: Disk quota exceeded (122) Array
/webspace/11/54357/analytics.sebastianspiegl.de/libs/Zend/Session.php(Line:479): Error #2 session_write_close(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/webspace/11/54357/analytics.sebastianspiegl.de/tmp/sessions) Array

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