Shield with protect/Ignore Damage HELP

Hi,i am an begginer in ue4,and i want to make an shield system.
I make an AI(Enemy)with the Actor(sword),and an collision with damage,now i want to make the shield ignore the collision of actor(sword),and i dont know,plz help my project have all the basics,i just need the shield protect!!!
Here the blueprint of my AI Actor(Sword)

i m make from that tutorial:Unreal Engine 4 Tutorial - AI [Damage (recieve/deal)] (Basico) 4/? - PT-BR (UE - 4.12.5) - YouTube
i’m Brazilian…