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Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/catalog/controller/product/search.php:258 Stack trace: #0 /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/system/engine/action.php(79): ControllerProductSearch->index() #1 /home/waterpron/dev.waterfilterexpert.nl/catalog/controller/startup/router.php(27): Action->execute(Object(Registry)) #2 /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/system/engine/action.php(79): ControllerStartupRouter->index() #3 /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/system/engine/router.php(77): Action->execute(Object(Registry)) #4 /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/system/engine/router.php(66): Router->execute(Object(Action)) #5 /home/waterpron/dev.waterfilterexpert.nl/system/framework.php(179): Router->dispatch(Object(Action), Object(Action)) #6 /home/waterpron/dev.waterfilterexpert.nl/system/startup.php(104): require_once('/home/waterpron...') #7 /home/waterpron/dev.waterfilterexpert.nl/index.php(24): start('catalog') #8 {main} thrown in /home/waterpron/dev.waterfilterexpert.nl/system/storage/modification/catalog/controller/product/search.php on line 258