Third party app help
So I recently downloaded a configuration profile for the Tweakdoor.com app and I downloaded an enterprise app from it called Among us - Tweakdoor.com and I trusted it and did all that stuff and for a while it worked and I could play it and everything was fine until this morning when I wanted to play and I got this message:
what does this mean and how can I fix it. Also just so you know my iPhone is not jailbroken.
iPhone 8, iOS 14