Zoom deconnects / Mac refuses to download the app

Hi, could you help me : I have a zoom account which a few days ago began to mess up : deconnects me when in a meeting.
So now, I can't use it for any meeting because my client stays alone while I'm disconnected. 
A few seconds later, I'm in again but it keeps disconnecting...

I don't get( any error code

My device is imac ventura 13.6.7
I don't know which is my zoom version
I tried to download the app but my imac doesn't accept it. 

Thank you for your help