Crash on Mac os Monteray

Hello friend,
since 2019 I have used Quelea for hundreds of programs and scenes in Romania. It’s a very cool software.

Now, when I got an Intel Imac with Monterey, the program suddenly closes after a maximum of a minute, it became very unusable. Any idea why? (I tried all the older versions, on 2019 it’s a bit better but still unusable)

I really need to solve this urgently for Sunday’s service.