Might be an idea to change your website and also remove the app from the Wordpress repository? People will be installing it thinking what a great product only to have it pulled in a a few months from now.
Got a feeling there must have been large amounts of dollars involved in all this somewhere. Nothing at all wrong with the product that’s for sure. Best 2FA out there. With over 1 million installs there must have been a very good reason to pull the plug and leave us all hanging.