[Error] Error message + attack repeating with new ability.

[MoonlightRose]

Trying to make a new ability that's basically Life Orb, keep getting an error when hit by a move that is followed by the other Pokémon using the move again.

[Pokémon Essentials version 20.1] [v20.1 Hotfixes 1.0.7]

Exception: NameError Message: undefined local variable or method `hitBattler' for nil:NilClass

Backtrace:

215:Battle_AbilityEffects:2265:in `block in <main>'

035:Event_Handlers:227:in `trigger'

215:Battle_AbilityEffects:233:in

`triggerAfterMoveUseFromTarget'

169:Battler_UseMoveTriggerEffects:196:in `block in

pbEffectsAfterMove2'

169:Battler_UseMoveTriggerEffects:193:in `each'

169:Battler_UseMoveTriggerEffects:193:in `pbEffectsAfterMove2'

169:Battler_UseMoveTriggerEffects:158:in `pbEffectsAfterMove'

166:Battler_UseMove:503:in `pbUseMove'

166:Battler_UseMove:52:in `block in pbProcessTurn'

012:PBDebug:6:in `logonerr'

And the code is:

Battle::AbilityEffects::AfterMoveUseFromTarget.add(:UNSTABLECORE,

proc { |ability, battler, battle|

next if !hitBattler

battle.pbShowAbilitySplash(battler)

battle.scene.pbDamageAnimation(battler)

battler.pbReduceHP(battler.totalhp / 8, false)
battle.pbDisplay(_INTL("{1} was hurt by their {2}!",
battler.pbThis))

battle.pbHideAbilitySplash(battler)

battler.pbItemHPHealCheck
}

)