I'm getting the following error out of nowhere today, and its been recurring throughout the day

(10:31:27) | [Oxide] 10:31 [Error] Failed to call hook 'OnEntitySaved' on plugin 'NoDroneSway v1.0.2' (NullReferenceException: )
  at (wrapper managed-to-native) UnityEngine.Component.get_gameObject(UnityEngine.Component)
  at Oxide.Plugins.NoDroneSway.ShouldSway (Drone drone) [0x00082] in <ff5d47736ee54cbf8fc17bc655b1ad2e>:0 
  at Oxide.Plugins.NoDroneSway.OnEntitySaved (Drone drone, BaseNetworkable+SaveInfo saveInfo) [0x00000] in <ff5d47736ee54cbf8fc17bc655b1ad2e>:0 
  at Oxide.Plugins.NoDroneSway.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x000f4] in <ff5d47736ee54cbf8fc17bc655b1ad2e>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <23ba99f131254889867c71f0bd137b1d>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <157a94ee66ab4a7991faecd1eb84be3b>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <157a94ee66ab4a7991faecd1eb84be3b>:0

I'm not sure what would cause this. My guess is you have some bad drone somewhere, possibly spawned by a plugin.

Can you try this version? It adds an extra null check that might resolve the error.
https://raw.githubusercontent.com/WheteThunger/NoDroneSway/develop/NoDroneSway.cs

I released the above fix in version v1.0.3.