It was going fine and dandy the first day we installed the mod on the server but then day after people where complaining they where crashing when tpaing we looked more through it, turned out it was tpaing through dimensions. the day after it turned into tpaing in general would crash the server.

The server is 1.16.5 with latest version of fabric and the mod.
As for the server crash logs it was cleared as the making of this but ill try to get one of the players crash logs.

does version 2.0.1 work on 1.16.5 or does it only work on version 1.17?

it should work on 1.16.5 and some of the earlier 1.17 snapshots

might be fixed in 2.0.0