Forum Problem after upgrade to 4.0
 

Hi everyone. after upgrading to vb 4.0.
When i try to access admin cp i got this message on the webpage

Warning: fetch_template() calls should be replaced by the vB_Template class in [path]/includes/functions.php on line 3895

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in [path]/includes/class_bootstrap.php(1133) : eval()'d code on line 1

Fatal error: Call to a member function query_first() on a non-object in /home2/arabitwo/public_html/vb/includes/class_bootstrap.php(283) : eval()'d code on line 145

Please could anyone tell how to fix the issue?