Need Help for Props spawning

Hi there,

I just imported my server on a new machine, and imported the gamemode, lua folder, data folder and addons folder.
I have a problem now, when i spawn a prop, i cannot pickup it with my physgun and he’s a world entitie … I don’t know what to do, is it a problem from me ? Or from the server ?

Maybe the other developper did something wrong on the script …

Please help me.
Thanks in advance.

(sorry for bad english)