Fatal error: Uncaught Error: Call to a member function getProductAttribute() on null in /storage/knifedep/public_html/catalog/controller/extension/module/custom_filter.php:25 Stack trace: #0 /storage/knifedep/storage/modification/system/engine/action.php(79): ControllerExtensionModuleCustomFilter->index() #1 /storage/knifedep/storage/modification/system/engine/loader.php(48): Action->execute() #2 /storage/knifedep/public_html/catalog/controller/common/content_top.php(52): Loader->controller() #3 /storage/knifedep/storage/modification/system/engine/action.php(79): ControllerCommonContentTop->index() #4 /storage/knifedep/storage/modification/system/engine/loader.php(48): Action->execute() #5 /storage/knifedep/public_html/catalog/controller/product/manufacturer.php(47): Loader->controller() #6 /storage/knifedep/storage/modification/system/engine/action.php(79): ControllerProductManufacturer->index() #7 /storage/knifedep/public_html/catalog/controller/startup/router.php(27): Action->execute() #8 /storage/knifedep/storage/modification/system/engine/action.php(79): ControllerStartupRouter->index() #9 /storage/knifedep/public_html/system/engine/router.php(67): Action->execute() #10 /storage/knifedep/public_html/system/engine/router.php(56): Router->execute() #11 /storage/knifedep/public_html/system/framework.php(179): Router->dispatch() #12 /storage/knifedep/public_html/system/startup.php(104): require_once('/storage/knifed...') #13 /storage/knifedep/public_html/index.php(19): start() #14 {main} thrown in /storage/knifedep/public_html/catalog/controller/extension/module/custom_filter.php on line 25