Engiminer

I don't know what I did differently, but the error code changed to "Invalid signature for profile public key" so I set "enforce-secure-profile" to false since only my friend will be allowed to join anyway and then everything worked properly. Here's the logs anyway, but I hope the problem doesn't come back. https://paste.ee/p/Ri44L

I tried to look for similar issues here on the forum already and couldn't find a fix. Just people who didn't read the rules properly.

I've been trying to start a new server for myself and a friend. Finally got it to start after hours of work, but I finally ran into an error that google doesn't know about. Attempting to join the server boots me out with the error code Internal Exception: java.lang.NoClassDefFoundError: net/minecraft/network/CompressionEncoder log file here: https://paste.ee/p/L3RQs The modpack is Life in the Village 3, with a couple added mods because my friend likes Tinker's Construct. Any help would be highly appreciated.