Cannot even run the project

right now the app crashes when i close the meeting for the second time
the sdk provide no stack trace to trace the error

Thread 1: EXC_BAD_ACCESS (code=1, address=0x1000000008)

note that i am navigation to the view controller from flutter action button
and i am doing the heavy lifting inside the iOS
i managed finally to implement the full scenario with android thanks to @jon.zoom
he is a very humble person , he helped me to fully implement android sdk with flutter .

i would like to have your help @Michael_Condon so that i can ship both apps to store

my issue now is with iOS version only