WP Login Page Not Found

I installed a plugin(https://wphelpdesk.com/custom-login-url- https://simpliko.pl/)which is suppose to allow you to change your wordpress login URL to whatever you want.

I went to settings—permalinks— and changed my Login URL from mydomain.com/wp-login.php to mydomain.com/login

After doing this, when I go to mydomain.com/login it says “Not Found on this Server.” I want to just remove this plugin, but I can’t login to my dashboard.

Can anyone help?