FA:S 2 Shotgun reload error

Gday facepunch. I installed FA:S 2 Customizable weaponry to my server recently and i have noticed that whenever a shotgun is reloaded I am present with this error. It doesn’t effect game play as such as the the gun reloads fine. I would just very much prefer having this fixed as it is annoying and unprofessional. Help would be very much appriciated

[fas20] lua/weapons/fas2_base_shotgun/shared.lua:291: attempt to call method 'RestartGesture' (a nil value)
  1. ShotgunThink - lua/weapons/fas2_base_shotgun/shared.lua:291
   2. unknown - lua/weapons/fas2_base/shared.lua:1041