Anyone else getting this while spawning scarecrows? Only started recently

Exception while calling NextTick callback (NullReferenceException: )
  at (wrapper managed-to-native) UnityEngine.Component.get_gameObject(UnityEngine.Component)
  at Oxide.Plugins.BetterScarecrows.updateEntityBrain (ScarecrowNPC entity, System.Boolean revert) [0x00063] in <80b55950792f47c3a7f67380f4b28b8f>:0 
  at Oxide.Plugins.BetterScarecrows+c__AnonStorey0.<>m__0 () [0x00000] in <80b55950792f47c3a7f67380f4b28b8f>:0 
  at Oxide.Core.OxideMod.OnFrame (System.Single delta) [0x00051] in <99d545163fdd4d57a562df7989f2ca0a>:0 ​

Hi,

Do you have any other NPC/Scarecrow/Zombie related plugin installed ?

It went away after I restarted the server. For some reason my entire map had no navmesh.

Oh. It seems that there were more problem than that, as the scarecrow doesn't have any gameObject associated (there was an exception in the UnityEngine code, I can't do anything for that).
Nice that it's fixed when you restart your server.