Why does routing stop working in Laravel after multiple requests?

Question

Laravel

The situation is such that in web.php I set a controller with an action. At first, everything is fine, that is, the action in the controller is performed. For example, if I make a mistake in a controller action, the framework will tell me about it. But after several requests, for some reason, the action in the controller stops being executed. That is, this action simply does not reach. Because I make a mistake in the code, but the framework no longer reports the error. That is, the request simply does not reach this action. And the page just reloads with the same address bar. That is, even if I write the left address, then no error will come out that there is no such address. It just reloads the previous page. What is the strange action in Laravel? I cannot understand why this is happening.