AoPackZeon

Error while running the chunk
  [string "Mods/Addons/AoPacksZeon/script/buff.lua"]:483: attempt to index a nil value
  func: __index, metamethod, line: -1, defined: C, line: -1, [C]
    func: SpecBuffChek, global, line: 483, defined: Lua, line: 478, [string "Mods/Addons/AoPacksZeon/script/buff.lua"]
      func: SpawnUnitBuff, global, line: 1282, defined: Lua, line: 1267, [string "Mods/Addons/AoPacksZeon/script/buff.lua"]
        func: CreateNPB, global, line: 1201, defined: Lua, line: 1083, [string "Mods/Addons/AoPacksZeon/script/npb.lua"]
          func: NPBinit, global, line: 2238, defined: Lua, line: 2211, [string "Mods/Addons/AoPacksZeon/script/npb.lua"]
            func: OnCreat, global, line: 2266, defined: Lua, line: 2104, [string "Mods/Addons/AoPacksZeon/script/mainscript.lua"]
              func: ?, ?, line: 2419, defined: Lua, line: 2414, [string "Mods/Addons/AoPacksZeon/script/mainscript.lua"]