Freezing making it unusable

This app is normally great, but for the past few months, every time I try to open it, it freezes and sends a ton of pop-up notifications to my phone. I havent been able to use the app at all for over 2 months as a result. Since I paid money for the features in the app, Id like this bug to be fixed so that I can continue using it! Thank you.

cookcrook about Follower Butler – Followers Tracker for Instagram, v1.1.1