My app crashes in testflight.

This is an ue5 generated xcode project that I have released to test flight. However the app isnt operating as it should. The app closes out when I try to open the main level. The tutorial opens with ease and my store to buy characters opens sometimes. I havent been able to get the main level to open without crashing but I have heard the sound of the main level opening sometimes before it crashes. The crashes aren't consistent and happen when trying to open levels in my game such as the store, tutorial, etc. This is what the crash log said on the right. Is it a shader issue?

My app crashes in testflight.
 
 
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