Here’s a couple pictures from what I’ve looked at for the third day
iPhone 11, iOS 15
it looks like that message is coming from within the app itself.
if your issue is isolated to that app, then contact the app developer
So the second screenshot.. that's where the App Support link in the App Store took you?
Then you tried to Login or Sign Up?
What if you just select Help Center? I would think there must be a way to contact them without signing in.
Otherwise maybe try using a computer and navigating to that url shown.
I believe you rate Chris 0107, but when I try to sign on it says it looks like a manu user so I try to create An account and then it doesn’t except my email address. Now what?
This is the third day that I have a ‘It’s not you it is us’ message and a connection problem. I have turned my phone off, to no avail. What else is to be done? The GB’s are there for storage also.
