Help Please 1
 

whenever i try to change usergroup of some one i am getting this error i duno how to fix it so please if u know help me. when i click on save changes this error message appears !

Fatal error: Call to a member function clean_gpc() on a non-object in /home/apnasky/public_html/includes/class_dm_user.php(1821) : eval()'d code(32) : eval()'d code on line 1:confused: