Fatal error: Uncaught Error: Call to a member function sub() on boolean in /var/www/html/website/system/storage/modification/catalog/controller/product/product.php:165 Stack trace: #0 /var/www/html/website/system/storage/modification/system/engine/action.php(51): ControllerProductProduct->index() #1 /var/www/html/website/catalog/controller/startup/router.php(25): Action->execute(Object(Registry)) #2 /var/www/html/website/system/storage/modification/system/engine/action.php(51): ControllerStartupRouter->index() #3 /var/www/html/website/system/engine/front.php(34): Action->execute(Object(Registry)) #4 /var/www/html/website/system/engine/front.php(29): Front->execute(Object(Action)) #5 /var/www/html/website/system/framework.php(103): Front->dispatch(Object(Action), Object(Action)) #6 /var/www/html/website/system/startup.php(126): require_once('/var/www/html/w...') #7 /var/www/html/website/index.php(106): start('catalog') #8 {main} thrown in /var/www/html/website/system/storage/modification/catalog/controller/product/product.php on line 165