An Error occurred: count(): Argument #1 ($value) must be of type Countable|array, null given<pre class="draggable" style="background: white; padding: 5px; border: 1px solid black; color: #000;" class="trace">>#0 [internal function]: ShopController->product()
#1 /home/inkeinke/domains/inke.nl/lib/service/requestcontrollerprotocol.class.php(59): ReflectionMethod->invokeArgs()
#2 /home/inkeinke/domains/inke.nl/lib/service/servicefacade.class.php(32): RequestControllerProtocol->execute()
#3 /home/inkeinke/domains/inke.nl/private_html/handler.php(5): ServiceFacade->request()
#4 {main}<</pre>