Error

[SWATBLACKOPS]

TEST [lua/weapons/gdcw_44magnum/cl_init.lua][lua/weapons/gdcw_44magnum/shared.lua]
TEST [lua/weapons/gdcw_44magnum/init.lua][lua/weapons/gdcw_44magnum/shared.lua]
TEST [lua/weapons/gdcw_44magnum/shared.lua][lua/weapons/gdcw_44magnum/shared.lua]
FOUND IN ADDON [0]

[rp_downtown_v4c_v2] lua/weapons/gdcw_44magnum/shared.lua:192: attempt to call method 'FireRocket' (a nil value)
1. unknown - lua/weapons/gdcw_44magnum/shared.lua:192


How do I fix this error?

[Bryantdl7]

Contact the developer of the addon, this error seems to be caused by a depleted function in Garry's mod that the addon is calling, but doesn't exist any more.