Ubuntu ZOOM 17 to downgrade to 15

[cjld2024]

Using Ubuntu Zoom 17 client, I got a 5003 error.

Using another lapto with Ubuntu Zoom 15, no problem.

I'd like to downgrade the v 17 to 15 to see if it is OK on my OS. Where to download the client 5.15.11 deb (64) ?

Thanks