Pb with test on my iPhone SE

Hi,

My application run correctly with the simulator (Iphone8 and iphone SE).
When i want to test it on my iphone SE i’ve :
dyld: Library not loaded:
@rpath/MailCore.framework/MailCore
Referenced from:
/private/var/containers/Bundle/Application/0C0AF3CC-3250-4E39-81BA-9A736AD63021/gfer94.app/gfer94
Reason: image not found

I use xcode 12.3 and my iPhone SE is 14.3
In my application i use Firebase and Mailcore2 (installed with github mailcore info)
Have you an idea
Thanks a lot for your help
Best regards

Georges