How to change website Login/Register pages?
Using the WPL Membership addon, you can change the default WordPress login/register/forgot pages to WPL Membership pages.
You can enable this feature simply by setting the User URLs option to WPL URLs in WPL->Settings->Membership->Users Section. We explained this feature more completely on the WPL Membership manual.
Note: If you're using a maintenance plugin for temporarily blocking your website for public users, Then make sure that your plugin supports the login URL correctly. Some plugins only know WordPress default login URL and block other pages so they may block even you from logging in to your website.