So for some reason, when I try to milk a cow with a bucket, the game instantly crashes. Granted, I have a bunch of other mods installed, including a few Pam's extras mods, but removing the Harvestcraft mod makes milk harvesting possible again.

Including the crash report for review; far as I can tell, it's something about how Pam's changes the basic recipes.
crash-2020-04-10_22.49.12-client.txt

When i try to shear a sheep, it also crashed.
Then i rolled back to 1.12.2zf, the issue solved.
crash-2020-04-12_15.20.58-client.txt