At the start of a multiplayer server with the mod on, I chose Phantom. Unfortunately, each time I die my game glitches. Once I respawn I lose the phantom ability (I can't toggle phantom mode and I see myself solid instead of transparent, although I still have the correct amount of hearts, and the other players can't see me. I tried leaving and rejoining the server but it left me on "Connecting to server..." for a few minutes before disconnecting me. It helped to restart the server and then join again but now it won't work anymore.
We use Aternos as our server supplier, and I am the only one in the group who has the bought version of the game if it matters. We are not using any major mod that could conflict with this mod.

I also tried to change my origin with the command to human and back to phantom but it still wont work