- Plesk 12.5 for Linux
Note: This article has the reference to the issue with the fix available:
Unable to change domain name after upgrading Plesk from version 12 to version 12.5 with error:
PLESK_ERROR: Cannot create directory /var/www: Permission denied
System error 13: Permission denied
Internal software issue #PPPM-3517 . It has been fixed in Plesk 12.5 MU#11.