Application crushes after trying to chat with friend

This issue happens since the last year. iOS application crushes when I open a chat with friend (I am using iPhone 11, but I just it doesn’t matter). PC version is OK, for sure.

Changing the iPhone language setting seems to help for some:

FIX THIS BUG! Click on Chat = crash
You are 3.7/5.0 on App Store.

Iph 6 and 8.