https://pastebin.com/vPzsZ2GX
This pops up every so often, maybe you can fix it

Seems to be related to passing null for the dataFixerType in TE registration, and I guess this log in particular then only triggers in specific cases (since otherwise we should be seeing a lot more of this from other mods too) - maybe something related to Villages or Structures since MineColonies has the same issue.

Doubt this is easily fixable until someone smart and willing figures out DataFixers for mods.