Props Help!

I made a garrysmod dedicated server with DarkRp on it. I cant pick up my money if i drop some and i cant pick up any weapons etc. And i get this in console

models/props_building_details/storefront_template001a_bars.mdl
ERROR!: Can’t create physics object for models/props/cs_assault/money.mdl

Please help!

[editline]07:23PM[/editline]

I am running on the newest update of darkrp