I run the 188.8.131.52 update but the problem is not solved.
The same 500 Eroor is displayed.
Originally Posted by till
This issue has been fixed already in the 184.108.40.206 release. Run the followng commands on your server to update it to 220.127.116.11:
tar xvfz ISPConfig-18.104.22.168.tar.gz
php -q update.php