Login Page Not Accessible after the change of wp-login.php

Thank you so much for this great plugin.

Please my users and I can no longer login after the change of wp-login.php
I even tried accessing my url directly to the new change but the page was blank with a word “error” like http://mysite.com/myogin

I am trying to chnage it back but don’t No where to edit in the directory file because I couldn’t access login page.

thanks in anticipation

https://wordpress.org/plugins/better-wp-security/