That's not how Aristois works. The only possible explanation would be if you were trying to use Forge and you didn't install the newer version to Forge properly so only the older version exists. Or you are running the wrong profile
Aristois does not affect your connection to servers. Check that you can connect with Fabric alone without Aristois and if it affects all/other servers or only one
I am having a problem with the integrated baritone and it is that in the new versions that there are, the minerals are in negative layers and baritone assumes that the world ends at block 0 so it does not go lower than that.
There is no manual fix, and I'm not sure that it would be up to their devs to fix it, since it's a conflict with mixins used for entities and entities are a large part of that mod