I have searched a lot for a solution to my case but no answer. I proceed with the installation for crashlytics on iOS, but the crashes don't appear on crashlytics. There are no missing DSYM, and I set the 'Debug Information Format' to 'DWARF with dSYM File'. I tried a lot of solutions but no one fit my case. Any help is appreciated!
Looking at the output from your log, it seems like you're using Firebase Crash Reporting and not Firebase Crashlytics. If you want to use Crashlytics, you need to remove the Firebase Crash Reporting SDK (you can't have 2 exception handlers in iOS apps) and then follow the instructions for installing and setting up Firebase Crashlytics.
