Crash with JustEnoughIDs

Hello, Im having a bizzare issue with both my server and my client, which have had my stumpped all day. After going through documentation all day, i’ve given up and come for support. So I installed JustEnoughIds onto the server (Version JustEnoughIDs-1.0.3-48), but it wouldnt launch, after researching a bit I saw that all I needed to do was update, okay cool, I did that and the server launched fine, however after installing the same version on my client, the client would crash on start up for [this] (https://pastebin.com/UDTszJZZ) reason. Thing that really stumps me is, I dont even have sponge on my client, and it’s throwing a sponge issue at me. I saw a fix on reddit for the client, which was to downgrade to version JustEnoughIDs-1.0.3-48, which is a version too old to work on the server. Please, any help would be good. Im honestly lost.

https://docs.spongepowered.org/stable/en/server/spongineer/incompatible.html

The issue that you are likely seeing relates to the Mixin system, which shows up under the sponge name, but is not necessarily part of the sponge plugin system.