Symptoms
In an attempt to access Plesk, the process fails with the error below:
ERROR: Zend_Log_Exception
"/usr/local/psa/admin/logs/panel.log" cannot be opened with mode "a"
Cause
Wrong ownerships for the /var/log/plesk/ directory or /var/log/plesk/panel.log file.
Resolution
1.Log into the the server via SSH.
2.Execute the commands below one by one to set proper ownerships for /var/log/plesk/ directory:
#chmod 0750/var/log/plesk/
#chown psaadm:root /var/log/plesk/
3.Run the following commands to set correct ownerships for the /var/log/plesk/panel.log file:
#chmod 0640 /var/log/plesk/panel.log
#chown psaadm:root /var/log/plesk/panel.log