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