Failed to call hook 'OnServerSave' on plugin 'PortableLocker v1.4.7' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.PortableLocker.SaveContainer () [0x0009d] in <f4c27050ffc1495fa2b1772c62fa2a93>:0 
  at Oxide.Plugins.PortableLocker.OnServerSave () [0x00008] in <f4c27050ffc1495fa2b1772c62fa2a93>:0 
  at Oxide.Plugins.PortableLocker.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00168] in <f4c27050ffc1495fa2b1772c62fa2a93>: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 <8cb2d664f1574f2b96d53f1c1869d96a>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <8cb2d664f1574f2b96d53f1c1869d96a>:0