Pending kill or garbage

Hello, I followed a tutorial where it shows how to pick up items and get them in my inventory. I got stuck at the part where it should add to the inventory. If I try to pickup an item it works on the first one, but on the next item it wont work anymore and I get the error “Pending kill or garbage”.
In my belive I have done everything as he did in the tutorial and also checked blueprints multiple times. The only diffrence is, he was using 5.0 early access and im using 5.0