[ERROR] addons/darkrp-leveling-system/lua/entities/vrondakis_printer/init.lua:33: bad argument #2 to 'SetNWInt' (number expected, got string)
  1. SetNWInt - [C]:-1
   2. unknown - addons/darkrp-leveling-system/lua/entities/vrondakis_printer/init.lua:33
    3. Spawn - [C]:-1
     4. callback - gamemodes/darkrp/gamemode/modules/base/sh_createitems.lua:407
      5. unknown - gamemodes/darkrp/gamemode/modules/chat/sv_chat.lua:141
       6. unknown - lua/includes/modules/concommand.lua:54