Things dissapear when i thouch them with physgun.

Hi, i recently noticed that models i spawn, basic hl2 stuff or custom, dissapear when i touch them with the physgun. In the console i get this message:

Infinite angles from vphysics! (entity prop_physics)
Infinite origin from vphysics! (entity prop_physics)

I need desperetly help!

[editline]04:21PM[/editline]

Can someone help me?