If your new login page is not working, please make sure you have pretty permalinks enabled. This plugin does not work if you have permalinks like example.com/?p=1. Also make sure that you don’t have any other plugins installed that do the same thing.
If you submit a ticket, add a link to your website and the name of the new login page, together with a list of all the active themes and plugins. If you want you can remove this information within an hour after posting. I get an email, so I can still see it after you removed it.