I have been receiving an error while trying to join a friends world while using the "Project Architect 2" modpack with the "essential mod" added on.
All mods are updated and all modloaders are up to date.
The error specifically says
" The game crashed whilst ticking screen Error: java.lang.NullPointerException: Cannot invoke "org.apache.commons.lang3.tuple.Pair.getLeft()" because the return value of "java.util.Map.get(Object)" is null "
Exit code: -1
Any advice? I also cannot get this friend to join my world, I can get other friends to join no issue though. No error codes from them cause they are a little "Tech Slow"
