I don't know what you mean exactly. But I can already imagine which message you mean. However, I can't do anything about that. Since I'm not a verified Apple developer. However, you can usually start the game anyway. By going to settings and security and there you can also allow unverified apps. Because unfortunately Apple is antisocial towards everything that doesn't come from their app store and also likes to describe programs that come from unverified developers as possible malware.