I made an issues ticket on their mod, but I thought I should make one here too.
When loading up abnormals-core and pillagers plus, it says that "pillager trust" failed to load.

crash-2021-03-07_17.27.41-fml.txt

Does this still happen if you remove Abnormals Core?
This looks like an issue on their side.

It happens only with Abnormals Core in the game, I tried about 90 other mods I had, where it worked.
Thanks for responding though!