[ERROR] addons/darkrpmodification/lua/darkrp_modules/up_inventory/sh_inventory.lua:39: bad argument #1 to 'pairs' (table expected, got nil)
  1. pairs - [C]:-1
   2. GetWeightOfInv - addons/darkrpmodification/lua/darkrp_modules/up_inventory/sh_inventory.lua:39
    3. callBack - addons/darkrpmodification/lua/darkrp_modules/up_f4menu2/cl_inventory.lua:27
     4. DoClick - addons/darkrpmodification/lua/darkrp_modules/up_f4menu2/cl_frame.lua:97
      5. unknown - lua/vgui/dlabel.lua:218