You need ProtocolLib for plugin work.
1.13 is not supported
Features:
- Do not remove items.
- Remove NBT tags from item(+100 damage(AttributeModiefers), and others)
- Remove cheat potions(100lvl instant damage(TrollPotion)
- Remove high enchants
- Remove enchants that item can't have
- CrashChest fix
- CrashItem fix
- #crashtest fix
- CustomPayLoad spam fix (REGISTER, MC|BEdit, MC|BSign)
- SkullExploitCrash fix
- Ender Pearl and SnowBall crash fix
Permissions:
itemfixer.bypass.packet - don't check for packet spam
itemfixer.bypass.nbt - don't check item nbt tags
itemfixer.bypass.enchant - don't check item enchants
itemfixer.bypass.potion - don't check for potions
itemfixer.allow.
EFFECT_TYPE.LVL - allow a custom potion effect on potion or arrow
itemfixer.allow.
MATERIAL.
ENCHANTMENT.lvl - allow on the item a certain enchant.