I'm not sure what causes this crash, as it happened when I installed it. And the crash report isn't obvious to me what happened. It doesn't seem to be a conflict.
Update Bewitchment. AbyssalCraft Integration 1.9.0 supports Bewitchment 0.0.20, which included a big rewrite on their end, which makes the integration incompatible with earlier versions of that mod.
I'm not sure what causes this crash, as it happened when I installed it. And the crash report isn't obvious to me what happened. It doesn't seem to be a conflict.
Crash report:
https://pastebin.com/2FzGeEFf
Affected versions ("latest" is NOT a version):
Latest log file for when the issue was present:
latest.log Linking file because its too large for pastebin