Note: All this problems below are noticed after updating Plesk 10.4.4 to Plesk 11.0.9
Problems:
1) error_log - When i'm trying to check error log document, on every domain i get
blank page page. Picture:
http://i50.tinypic.com/1gn9du.png
BUT, when i click on the right side to download file, everything works just fine and i can see whole log.
This message appear every time when i click on error_log: