Can't pickup weapons

can somebody help me???
i can spawn several weapon shipments, but when i want a gun from it, it floats in the air.
the only way for me to get a gun is thrue my admin menu.
i’ve installed all files like CS:S and TF2 and HL@ in my orangebox\garrysmod folder like they said.

who has an answer for me?

nvm this question, its resolved