Exception thrown at spawning particles

Development Asset Creation FX
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1

Hello. Im getting an Exception while trying to spawn some particles after I hit an object. This is the code:

header file:

UPROPERTY(EditDefaultsOnly, Category = "Explosion")
		UParticleSystem* KilledEnemyParticle;

cpp file:

void ABulletProjectile::OnHit(UPrimitiveComponent * HitComp, AActor * OtherActor, UPrimitiveComponent * OtherComp, FVector NormalImpulse, const FHitResult & Hit)
{
	if ((OtherActor != NULL) && (OtherActor != this) && (OtherComp != NULL))// && (OtherComp->IsSimulatingPhysics())))
	{
		OtherComp->AddImpulseAtLocation(GetVelocity() * 50.0f, GetActorLocation());
		UGameplayStatics::SpawnEmitterAtLocation(this, BulletHitParticle, GetActorLocation());

		if (OtherActor->ActorHasTag(TEXT("Destroyable")))
		{
			
			AActor* ActorToDestroy = OtherActor;

			FTimerHandle TimerHandle;
			FTimerDelegate TimerDelegate;
			
			AZombieRatPawn* ZombieRat = Cast<AZombieRatPawn>(ActorToDestroy);
			
			if (OtherActor != this)
			{
				if (ZombieRat != nullptr)
			{
				TimerDelegate.BindLambda([ActorToDestroy, this, ZombieRat]()
				{
					if (ZombieRat->CanEmmit)
					{
						UGameplayStatics::SpawnEmitterAtLocation(this, KilledEnemyParticle, ActorToDestroy->GetActorLocation());
						ZombieRat->CanEmmit = false;
					}
					ActorToDestroy->Destroy();
				});
				GetWorld()->GetTimerManager().SetTimer(TimerHandle, TimerDelegate, 1.f, false);
			}
			}
			
						
		}
		
	}

	Destroy();

}

Im getting this error after UE crashes:

Exception thrown at 0x0000000000000000 in UE4Editor.exe: 0xC0000005: Access violation executing location 0x0000000000000000. occurred

and this is the line that is failing:

UGameplayStatics::SpawnEmitterAtLocation(this, KilledEnemyParticle, ActorToDestroy->GetActorLocation());

any help would be appreciated. Thanks