Help setting up

I Purchased the pluging for a PVE server and dont have the slightest idea on how to set this up. 
Would be nice to have a youtube video or something for us to look at to guide us thru adding stuff to the plugin

The whole adminshop is clustered.
 

Also have this error in the console:
 

Failed to call hook 'ShoppyStockAdminConsoleCommand' on plugin 'ShoppyStock v2.1.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ShoppyStock.DrawAdminDictionaryOptions (BasePlayer player) [0x003bf] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.ShoppyStockAdminConsoleCommand (ConsoleSystem+Arg arg) [0x0042c] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x04f12] in <4e9d9c28b9864a6191dae6c68c3efa12>: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 <112d89ea5d3348c8b949af0ab1a866d2>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <112d89ea5d3348c8b949af0ab1a866d2>:0 
Failed to call hook 'ShoppyStockAdminConsoleCommand' on plugin 'ShoppyStock v2.1.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ShoppyStock.DrawAdminDictionaryOptions (BasePlayer player) [0x003bf] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.ShoppyStockAdminConsoleCommand (ConsoleSystem+Arg arg) [0x0042c] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x04f12] in <4e9d9c28b9864a6191dae6c68c3efa12>: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 <112d89ea5d3348c8b949af0ab1a866d2>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <112d89ea5d3348c8b949af0ab1a866d2>:0 

16 hours ago, MrDirtySouth said:

Also have this error in the console:
 

Failed to call hook 'ShoppyStockAdminConsoleCommand' on plugin 'ShoppyStock v2.1.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ShoppyStock.DrawAdminDictionaryOptions (BasePlayer player) [0x003bf] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.ShoppyStockAdminConsoleCommand (ConsoleSystem+Arg arg) [0x0042c] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x04f12] in <4e9d9c28b9864a6191dae6c68c3efa12>: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 <112d89ea5d3348c8b949af0ab1a866d2>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <112d89ea5d3348c8b949af0ab1a866d2>:0 
Failed to call hook 'ShoppyStockAdminConsoleCommand' on plugin 'ShoppyStock v2.1.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ShoppyStock.DrawAdminDictionaryOptions (BasePlayer player) [0x003bf] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.ShoppyStockAdminConsoleCommand (ConsoleSystem+Arg arg) [0x0042c] in <4e9d9c28b9864a6191dae6c68c3efa12>:0 
  at Oxide.Plugins.ShoppyStock.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x04f12] in <4e9d9c28b9864a6191dae6c68c3efa12>: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 <112d89ea5d3348c8b949af0ab1a866d2>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <112d89ea5d3348c8b949af0ab1a866d2>:0 

 

if you added something crucial to the plugin make sure to also reload it as many fields to the config generate when you create new currency.
plugins very complex and its really hard to make in-game ui for configuration if you have so many options. if you need help with something let me know.