[Error] New ability causing an error

Hi there, I created a new ability which acts kinda like storm drain but for steel moves and when hit by one, instead of getting the SPATK, raised, the ATK is raised. I simulated a battle but when I get hit I get this error

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Pokemon Neutron
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[Pokémon Essentials version 17.2]

Exception: NameError

Message: uninitialized constant PBStats::ATK

PokeBattle_Move:312:in `pbTypeImmunityByAbility'

PokeBattle_Move:445:in `pbTypeModMessages'

PokeBattle_Move:1050:in `pbCalcDamage'

PokeBattle_Move:1281:in `pbEffect'

PokeBattle_MoveEffects:1835:in `pbEffect'

PokeBattle_Battler:3280:in `pbProcessMoveAgainstTarget'

PokeBattle_Battler:3236:in `each'

PokeBattle_Battler:3236:in `pbProcessMoveAgainstTarget'

PokeBattle_Battler:3719:in `pbUseMove'

PokeBattle_Battler:3699:in `loop'



This exception was logged in

C:\Users\lenovo\Saved Games\Pokemon Neutron\errorlog.txt.

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OK
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It is because in the script I have modified this :
if opponent.pbCanIncreaseStatStage?(PBStats::SPATK,opponent)
opponent.pbIncreaseStatWithCause(PBStats::SPATK,1,opponent,PBAbilities.getName(opponent.ability))
into this :
if opponent.pbCanIncreaseStatStage?(PBStats::ATK,opponent)
opponent.pbIncreaseStatWithCause(PBStats::ATK,1,opponent,PBAbilities.getName(opponent.ability))

Your issue is because the constant name for the attack stat is ATTACK, not ATK.
All of the proper names are in script section PBStats.

Thanks a lot !