Fatal error in osclass/model/item.php

[7eway]

Hello

I find a fatal error just last hours

Fatal error: Call to a member function row() on a non-object in /home/xxxxxxxxx/xxx/xxx/oc-includes/osclass/model/Item.php on line 608 

See the red line of code


   } else {
                return 0;
            }

            $result = $this->dao->get() ;
            $total_ads = $result->row() ;
            return $total_ads['total'];
        }

Please help me to resolve it

[Legion]

may be some malware attack