error with mobs

[TDMidkwhatisxd]

Please make sure your issue complies with these guidelines:

• • Server Software must be the official PMMP w/o vanilla patching plugins (i.e. TeaSpoon)
• • Issue must have not been reported previously
• • Make sure you are on the latest version of PMMP & PiggyCustomEnchants
• • Have a detailed title, like "CustomEnchants::getName() must be..."
• • If possible, provide crashdumps/errors related to the issue.

General

Version of PiggyCustomEnchants:

Steps to Reproduce the Issue

Extra Information

[Server thread/CRITICAL]: Could not tick level "factions": Index invalid or out of range
[08:37:07] [Server thread/CRITICAL]: RuntimeException: "Index invalid or out of range" (EXCEPTION) in "src/pocketmine/item/enchantment/Enchantment" at line 110
[08:37:07] [Server thread/DEBUG]: #0 src/pocketmine/item/Item(404): pocketmine\item\enchantment\Enchantment::getEnchantment(integer 411)
[08:37:07] [Server thread/DEBUG]: #1 PureEntitiesX.phar/src/revivalpmmp/pureentities/utils/MobDamageCalculator(100): pocketmine\item\Item->getEnchantments()
[08:37:07] [Server thread/DEBUG]: #2 PureEntitiesX.phar/src/revivalpmmp/pureentities/entity/monster/walking/Zombie(140): revivalpmmp\pureentities\utils\MobDamageCalculator::calculateFinalDamage(pocketmine\Player object, double 2)
[08:37:07] [Server thread/DEBUG]: #3 PureEntitiesX.phar/src/revivalpmmp/pureentities/entity/monster/WalkingMonster(70): revivalpmmp\pureentities\entity\monster\walking\Zombie->attackEntity(pocketmine\Player object)
[08:37:07] [Server thread/DEBUG]: #4 PureEntitiesX.phar/src/revivalpmmp/pureentities/entity/monster/WalkingMonster(196): revivalpmmp\pureentities\entity\monster\WalkingMonster->checkAndAttackEntity(pocketmine\Player object)
[08:37:07] [Server thread/DEBUG]: #5 src/pocketmine/level/Level(751): revivalpmmp\pureentities\entity\monster\WalkingMonster->onUpdate(integer 3440)
[08:37:07] [Server thread/DEBUG]: #6 src/pocketmine/Server(2377): pocketmine\level\Level->doTick(integer 3440)

[DaPigGuy]

How do we reproduce?