Error : lua/weapons/arccw_base/sh_anim.lua:258: attempt to call method 'GetViewModel' (a nil value)

[Lucasgood5]

Error : lua/weapons/arccw_base/sh_anim.lua:258: attempt to call method 'GetViewModel' (a nil value)
  lua/weapons/arccw_base/sh_anim.lua:258 - GetAnimKeyTime()
    lua/weapons/arccw_base/sh_grenade.lua:137 - ()
      lua/weapons/arccw_base/sh_timers.lua:46 - ProcessTimers()
        lua/weapons/arccw_base/sh_think.lua:310 - ()

[Lucasgood5]

[Autoreport] Error occured for the first time from server at 19:6