The most common fix is to wait. Check the official iOSGods Twitter or website; once they have a new certificate, you must delete the old app and reinstall the new version.
A occurs when Apple cancels the digital certificate used to "sign" and run unofficial apps on your iPhone or iPad. Since iOSGods relies on enterprise certificates to distribute modified games and apps without the App Store, these apps stop working immediately once Apple identifies and disables the certificate. 🛑 Why Revokes Happen iOS GodsRevoked
This is a paid subscription service. Because it uses a unique certificate for your specific device, it is much harder for Apple to detect and revoke compared to the free version. The most common fix is to wait