I purchased the Construction Site Building Pack and the config files will not add

Failed to call hook 'GiveSiteChatCommand' on plugin 'BuildingSites v1.1.7' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.BuildingSites+LootManager.CreateItem (Oxide.Plugins.BuildingSites+ItemConfig itemConfig, System.Int32 amount) [0x0002c] in <ed8065075a4a44f7ba8ff90dc0886729>:0                                       18kb/s in, 159kb/s out
  at Oxide.Plugins.BuildingSites+LootManager.GiveItemToPLayer (BasePlayer player, Oxide.Plugins.BuildingSites+ItemConfig itemConfig, System.Int32 amount) [0x00000] in <ed8065075a4a44f7ba8ff90dc0886729>:0
  at Oxide.Plugins.BuildingSites.GiveSiteChatCommand (BasePlayer player, System.String command, System.String[] arg) [0x0003c] in <ed8065075a4a44f7ba8ff90dc0886729>:0
  at Oxide.Plugins.BuildingSites.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00b0e] in <ed8065075a4a44f7ba8ff90dc0886729>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <d59b507fd76240e5b62228d0eae39b73>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <d59b507fd76240e5b62228d0eae39b73>:0d. Move the contents of the data folder from the archive to the oxide/data folder on your server!

BuildingSites.json

Hi. Send a screenshot of the contents of the oxide/data/BuildingSites folder

This file is not here. Move it here from the archive

Prompt after adding      NullReferenceException: Object reference not set to an instance of an object     After that, the base will not refresh.