Anyone??

Error in exception handler: View [errors.not-found] not found...

This is saying it cannot find the view file which using defaults would be in resources/views/errors/not-found.blade.php

What route url gives the error?

Ok, so I know that this error refers to the function which I have added to global.php. We can ignore that for the moment. My bad for not noticing that.

Any idea, for the other problem? I am still struggling with it. It still throws out NotFoundHttpException for this function which I have made. Others work fine.

Check your routes.php it seems the problem is there,

Everything in routes.php looks alright to me. I've got the correct namings etc. This is why I am worried about. It should work fine.