Don't worry 95% of the mods porting have this issue due to sidedness changing in 1.14

Exceprt
https://gist.github.com/ProsperCraft/c879d69c90858bd0ab36325374b991ed

debug.log
latest.log
crash-2019-09-19_15.35.13-server.txt

Thanks for the report! I addressed this in dc64019.