When I Destroy the actor it gives me a pending kill error on the HUD widget...

Thank you so much for the patiente… I was able to make the Widget to work again but theres just this thing… how to I say to the dead event that my health is below zero?? I replicated everything and still I dont seem to find a way to make my actor “die”…
My project is a little bit confusing at least for me…
For damaging the actor´s health i have a cube that deals damage when touched and thats working just fine with everything the only problem is when the actor gets to no health nothing happens and the health bar just stays empty