Error in IOS 11.2 upload. not sure what to do and could do with some help

have a couple of English learning apps on the App store after makign them for Android. They are fine, but i made a bigger English Phonics app and depsite trying twice i have it rejected for crashing but i cant work out why.

Can anyone help point me in the right direction. I have used Unity to make the apps previously, and for this one.

Apple have simply said it crashed on an Ipad pro running IOS 11.2/3enter code here

i have attached the error message as text files.

really stuck on this :frowning:

3369127–264087–apple error 1 wtf.txt (65.9 KB)
3369127–264088–apple error 2 wtf.txt (64.7 KB)
3369127–264089–apple error 3 wtf.txt (65.9 KB)

To extract meaningful information from these you have to symbolicate these files against dSYM that was generated when making submission build.