Idle Iktah signed game crashes on opening

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My phone info: iPhone 12 iOS 18.4.1 non-jail broken I do have developer mode on, and App+ access. As the title reads I signed Idle Iktah (new update, but this problem occurred with the previous update also) and as soon as I tap the app, it doesn’t even open, it just goes to a black screen and then the app crashes. I know the certificate is expired, but I thought downloading with App+ bypassed this, and was the only reason I am paying for the App+. Is my only solution using sideloader and a laptop/computer to make this work for my phone? I have looked in my Settings -> Privacy & Security -> Analytics & improvements -> Analytics Data and there are no logs for the app crashing for me to post for others to try and help me in that way. Any help would be appreciated. I haven’t been able to play the signed app with iGameGods in over 5 weeks. Thanks!