Failed to call hook 'OnEntityKill' on plugin 'EntityScaleManager v2.0.0' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.EntityScaleManager.OnEntityKill (BaseEntity entity) [0x00006] in :0

  at Oxide.Plugins.EntityScaleManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x002b0] in :0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <31122a27a2414cd799150f8677cf39d4>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0
 

anyone know how to fix this. I have deleted everything and added it again to get the same thing

This looks like there is probably another plugin that is killing entities before they are spawned. I will release a fix momentarily to prevent the error in that case. Let me know whether you continue to see it after that update.