Garry's Mod

Garry's Mod

Seat Weaponiser II
I go on a map, and when I load in, I get this
[Seat Weaponiser II] lua/autorun/sh_bfg_weaponseats.lua:28: Tried to use a NULL vehicle!
1. GetDriver - [C]:-1
2. ResetPunchThink - lua/autorun/sh_bfg_weaponseats.lua:28
3. v - lua/autorun/sh_bfg_weaponseats.lua:66
4. unknown - lua/includes/modules/hook.lua:84 (x284)

Dunno what dafuq this means, but i'd really like some help solving this.