The same happened me once but it was my fault – I put in a url with mixed case and the plugin converted it to lowercase. Could that have been the problem for you?
This is happening to me as well, and I bookmarked my login and put it in my notes app, so I know it’s correct. No matter what, it keeps showing a 404 page. Now I am locked out of my own site and the developer FAQs on what to do if you’re locked out are horribly written and confusing. How do I regain access to my site?
The login string is stored in the wp_options database table with option_name = ‘whl_page’
The login was correct, it’s just that I kept getting a 404 page. Thank you for your assistance. I just decided to delete the plugin and update the URL manually via .php.
