Upgrade? What new upgrade?

I got this message saying to upgrade the app. The problem is even though you dont upgrade the app, you cant get into the game. Well guess what? The App Store wont allow me to upgrade, so now I cant get into the app. I dont know if its the App Store or the game company, so if its the App Store, this message is more for you, if its the game company this message is for you. Whoever is causing this mess, FIX IT!

Erin Kate Widmark about Hollywood U: Rising Stars, v2.7.0