hi i get every time this error when a admin log off

NullReferenceException: Object reference not set to an instance of an object

Could you check your oxide/logs for the full error?

xxx.xxx.xxx.xx:xxxxx/76xx1x9xxxxxxx/xxxx xxxxx disconnecting: closing
NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.OnDestroy () [0x0000b] in <486b3a4477da44f2a556e6816d0ec96d>:0

edit sorry ther is more

  at Oxide.Plugins.Vanish+VanishPositionUpdate.OnDestroy () [0x0000b] in <1eefe09ce8274b6b91a8386ce05f7e71>:0 
 
(Filename: <1eefe09ce8274b6b91a8386ce05f7e71> Line: 0)

this?

maybe @Whispers88 can look into this since its a Vaninh error