Unable to load GUIShop, System.NullReferenceExceptionSolved

Getting this error on new server after update.  Cant install fresh copy, nor update previous version.

[Error] Unable to load GUIShop. System.NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.GUIShop..ctor () [0x00028] in <7a877128bc9a40fc8c03238767f3f29c>:0 
  at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke(System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in <fb001e01371b4adca20013e0ac763896>:0 
18:37 [Info] No previous version to rollback plugin: GUIShop

What version number are you on? (if you are updating from 1.7 to 1.8 or higher)

Then you need to follow the instructions and delete your old data files, lang file, and either disable or delete your old config. 

1.8.1
Please add me on discord I would like to help you fix this asap. Khan#8615
Sent.  Thanks!
look I do not know which one you are in my discord I have lots of people messaging me, please send me a msg else I do not know which one is you... 

Merged post

unknown.png

In case anyone has this error please delete your old language file! it will resolve it. :) 

This is actually likely to be caused by changing static methods in a plugin update while the server was running. That is the danger of static objects in plugins, as they are never removed unless nullified or server is restarted.
TerrainMeta.Path.Monuments is throwing an exception, assign it in OnServerInitialized or use its value directly instead of making a field.
Locked automatically