My server crashes when Someone becomes the class Civil Protection HELP!!

Here’s the errors
[ERROR] gamemodes/darkrp/entities/weapons/stick_base/shared.lua:69: attempt to call method ‘GetViewModel’ (a nil value)

  1. unknown - gamemodes/darkrp/entities/weapons/stick_base/shared.lua:69

  2. Give - [C]:-1

3. Call - gamemodes/darkrp/gamemode/modules/base/sv_gamemode_functions.lua:703

 4. changeTeam - gamemodes/darkrp/gamemode/modules/jobs/sv_jobs.lua:142

  5. callback - gamemodes/darkrp/gamemode/modules/base/sh_createitems.lua:400

   6. callback - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:8

    7. RP_PlayerChat - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:37

     8. unknown - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:101

Try updating darkrp, because the stick_base had an issue in it, but was fixed a few updates ago.

Okay thank you