Using the first public 1.20.1 release and it crashed, likely an interaction with smarter farmers
https://gist.github.com/mxnmnm/fe1059e9eb5a90873bf59721239e0e1a

This is because smarter farmers hasn't updated for the latest quark code yet. Either that or you have an older version. If it's already latest you have to wait on an update from it.

Actually it has. @mxnmnm you are not using its latest version