[SOLVED]Client not dealing damage to server

I try to do damages on server from a client but its not a success…
I found this old post;…mage-to-server
but his issue was simple, he had to set the owner of the weapon…
I did set the owner of the weapon using the blueprint library code found in this post but I think this is useless because there is a node SetOwner in 4.18-4.19 for that but I did use the code instead… also the spawn actor node have an input for the owner so I don’t think my problem come from the owner.
3 days trying things and I cant found the problem… help please!