Minecraft version(s)

1.19.3

Minecraft version details

No response

Mod loader

Fabric

Mod loader version

Fabric 0.14.12 (server)

Fabric API version

0.72.0 1.19.3 (server)

In what kind of world or server did the problem occur?

My multiplayer server that I was running

What went wrong? (Crash logs don't go here)

whenever i join my server with pehkui (literally just pehkui and fabric api), i get this error on the client:

Internal Exception: io.netty.handler.codec.DecoderException: net.minecraft.class_151: Non [a-z0-9/._-] character in path of location: minecraft:maxCount

HOWEVER, i only get this error if i have operator, strangely enough

when i remove pehkui, i do not get this error

Full list of installed mods and their version numbers

fabric-api-0.72.0+1.19.3.jar
Pehkui-3.6.3+1.14.4-1.19.3.jar

Did the problem cause the game to crash?

No.

Full crash report contents (if you experienced a crash)

No response

Nevermind, it was some mods on the client, just made a new instance with only pekui and it worked.