Problem with my inventory system

Hello, i’m creating on an inventory system for my multiplayer game, the system works ‘almost’ perfectly in singleplayer but when i test it on a dedicated server i get various errors, i also wanted to note that all the variables are replicated.;base64

These errors appear on the start of the game, and when i take an item from the ground it doesn’t visualize in the controlled characters inventory (the one which actually picked up the object) but in the one of the latest opened client.;base64