Crash: https://pastebin.com/gtJqjpjU
CustomTool.json: https://pastebin.com/8GP1p3bg

MC 1.11.2
Forge 2315
SH 1.6.5

itemFlint add to oreDict via CraftTweaker

Crash occured when mining dirt with Flint Excavator

Thanks, looks like it's something that I missed when porting to 1.11, and it's a simple fix. I'll get that fixed soon.

Just gonna leave the reference to the issue here for me for later:
https://github.com/thebrightspark/SparksHammers/blob/1.12/src/main/java/brightspark/sparkshammers/util/CommonUtils.java#L238

Sorry, forgot to reply back to this issue. I should hopefully have fixed the issue in commmit c72c967

Please post back here if you still get the same error on the next update.