Im trying to play with some friends using this and its stopping me from entering into the game. Is this created for multiplayer? We are playing on a deticated server.

This mod works on multiplayer if the server has it too.

... I am not the brightest person in the planet. Fixed in 4.0.0, no more desyncs in multiplayer now. I am so sorry.

FYI-
The mod claims support for 0.15 to 0.16 however in the mod setup it says incompatible and is expecting 0.16 or higher. I ended up changing the info.json file to 0.15 or higher in order for the mod to work. Might want to take a look see and fix the info.json file.