CMS Fatal error on CMS
 

I am getting this cms error, when trying to go into cms home page

It appears that this happens only when i do not logged in



Code:

Fatal error: Call to a member function num_rows() on a non-object in /home/supagr/public_html/forums/packages/vbcms/controller/content.php(84) : eval()'d code on line 31
i have disable all the plugins and still i get same error