Unfortunately the pro unlocker is no longer in the play store. New phone, and the unlocker is in my order history, but when I attempt a reinstall, I get "This item isn't available"

I paid the annual fee for the app, good through july 2020, however app is now showing me to be a free user, what gives???

Tap Restore Purchase or delete and reinstall, this will re-establish the connection with the Play Store.