I need help fixing this lua error in my server.

[OGDeprez]

I'm having this error in my server and I am unaware what it is in result of, the server was running fine and then I went to add a new job for DarkRP and it resulted in a whole new problem in a different place. the error says this

  1. error - [C]:-1
   2. unknown - gamemodes/darkrp/gamemode/libraries/simplerr.lua:467
    3. error - gamemodes/darkrp/gamemode/libraries/fn.lua:80
     4. mergeCategories - gamemodes/darkrp/gamemode/modules/base/sh_createitems.lua:1022
      5. fn - gamemodes/darkrp/gamemode/modules/base/sh_createitems.lua:1041
       6. Call - addons/ulib/lua/ulib/shared/hook.lua:110
        7. Call - gamemodes/darkrp/gamemode/libraries/modificationloader.lua:143
         8. unknown - gamemodes/darkrp/gamemode/cl_init.lua:47
 

[highlight](User was banned for this post ("wrong section" - postal))[/highlight]