Question Animation runs again even if hitbox is off when the animation runs

I have made a fighting game in Unity that uses hitboxes so that the character reacts when another character attacks.

I have a problem when a character1 kicks character2 character1 will run an animation where he falls back. I have made a script where the character1 hitbox turns off when the animation runs.

if(Player1Layer0.IsTag("Stunned"))
{
RB.isKinematic = true;
BoxCollider.enabled = false;
CapsuleCollider.enabled = false;
}
else
{
BoxCollider.enabled = true;
CapsuleCollider.enabled = true;
RB.isKinematic = false;
}

However, when character2 kicks character1 while his "Stunned" animation runs, he will run the "Stunned" animation again after finishing his previous "Stunned" animation.

How can I fix this issue?