n I found Controller class Webroot could not be found

`I have issue on when deploy cakephp 3x project on server. Login page show correctly when login show blank screen issue. I have check error log then I found Controller class Webroot could not be found Error Error: [Cake\Routing\Exception\MissingControllerEx

What URL does your log say it’s trying to access when it hits that error?

The URL that triggers the error is the login page. The issue occurs when attempting to log in.

You said the login page shows correctly. I’m reading that to mean that you enter your credentials and hit submit, and after that you get the error. Which means it’s likely not the login page that’s giving you the error, but whatever page the login redirects to after you’re logged in. Your error log should show that URL along with the exception.