Error when installation rocket.chat on Ubuntu Server 24

You will - downgrades are not supported due to upgrades within the Mongo DB structure with version changes. Restore from backup to the same version that was used for the backup is the only reasonably guaranteed option.

Some people do roll back - YMMV.

The other thing to check on ubuntu is apparmor. I think they are a lot stricter on 24.x than 22.x

Beyond that I don’t know.

You should do a lot more reading to understand this. There are plenty of topics on it eg

I did say:

Precisely.