Knowledge Base

Plesk shows the error: PleskPermissionDeniedException: Session token has expired.

One of the following error messages appear in Plesk:

Error in Plesk: Zend_Controller_Exception: Session token has expired.

Zend_Controller_Exception: Permission denied.#0

PleskPermissionDeniedException: Session token has expired.

Suddenly Unexpected token < in JSON at position 0
The following message is logged in Plesk log file /var/log/plesk/panel.log:

# grep 'protection token check' /var/log/plesk/panel.log

ERR [panel] Forgery protection token check failed.

Sessions time for forgery protection token has exceeded.

For Plesk on Linux

Connect to the Plesk server via SSH.
If there is a stuck process in Plesk, cancel it.
Increase PHP timeout in Plesk configuration file:

# echo "session.gc_maxlifetime=86400" >> /usr/local/psa/admin/conf/php.ini
Restart the Plesk service:

# service sw-engine restart