503 Service Not Available when access to control panel

[Law]

Hi,

We are running plesk 10.4.4 Ubuntu, linux platform. The psa was having issues and users unable access to control panel.

The panel log file show below:

/usr/local/psa/admin/logs/panel.log

code: 0
2015-09-08T15:14:01+08:00 CRIT (2): mail_Exception_ManagerExecution: mailmng failed: Empty error message from utility.
file: /opt/psa/admin/plib/mail/Manager.php
line: 186
code: 0
2015-10-09T10:03:25+08:00 ERR (3): APS Catalog error: connect() timed out!
2015-11-22T08:52:45+08:00 CRIT (2): mail_Exception_ManagerExecution: mailmng failed: Empty error message from utility.
file: /opt/psa/admin/plib/mail/Manager.php
line: 186
code: 0

Due to this reason, we have to restart PSA service very often.

Please advise!

Regards,
Law

 

[abdi]

https://kb.odin.com/en/920

 

[Law]

Hi Abdi,
Thanks for the replies! However, the URL given was not help. We didn't do any system upgrade, the psa service become unstable so we need to restart it everytime. Any idea whats might cause this problem?

 

[Law]

Hi Plesk Expert,

Is there anybody have any idea, who having similar issues like us? Can you share with us how you resolve the issues? We didn't perform any changes of the system, now the users start complaint as they are not able to access control panel.

Thank you!