• Fixed unbreakable items for 1.12.
• Fixed unbreakable option not working for kits.
• Attempt to fix some rare damage errors.
• Fixed some compatibility problems between 1.8-1.12-1.15.
• Removed unnecessary plugin checks.

Planning to drop 1.8 support, if you are using 1.8 please let me know in Discussion so we can work on something.