Describe the bug you're experiencing

I'm on Neoforge 21.1.89 and same bug was on previous versions, the game works fine with connectivity 6.0 and crash with version 6.1

Reproducability

Update Connectivity from 6.0 to 6.1
Launch the game
The game crash

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.21.1

Modloader version

Forge

Logs

https://gist.github.com/Soforak/47aaf899d84fd07ea8cea25d2fae103e

bettermodsbutton is crashing due to some problem with its config file, dont think this has anything to do with connectivity. Probably just need to reset that faulty config file

There is btw a compat issue with vmp, the fabric version of the mod got a fix for it, I wouldnt recommend using syntra connector.

Deleting VMP solved the issue, I don't have many players on the server as it was only working on client side, so it's not a big lose anyways, Thanks!
I didn't try to use the fabric version tho