NullReferenceException at UpdateHeli
Anytime the helicopter spawns, I get this error in my console:
 Failed to call hook 'OnEntitySpawned' on plugin 'HeliControl v1.2.8' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.HeliControl.UpdateHeli (BaseHelicopter heli, System.Boolean justCreated) [0x0012a] in <ec78abdf57674d0682996e4c55b1e58d>:0 
  at Oxide.Plugins.HeliControl.OnEntitySpawned (BaseNetworkable entity) [0x00886] in <ec78abdf57674d0682996e4c55b1e58d>:0 
  at Oxide.Plugins.HeliControl.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x003ae] in <ec78abdf57674d0682996e4c55b1e58d>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0​
Though nothing seems wrong with it, I still get this error.
Same, but mine is on "HeliControl.OnEntitySpawned"

(23:59:45) | Failed to call hook 'OnEntitySpawned' on plugin 'HeliControl v1.3.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.HeliControl.OnEntitySpawned (BaseNetworkable entity) [0x003cf] in <2ce45880ca4e4217a57988e5a208ea04>:0 
  at Oxide.Plugins.HeliControl.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x003f8] in <2ce45880ca4e4217a57988e5a208ea04>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0​
Sorry for the late response, fellas. I've looked into this and I believe the issue will be fixed in the coming update. Should be out within next few days.

I know for a fact you get error if you use custom loot and made a typo in the item's the heli can drop

For example: ammo.rocket Has to be: ammo.rocket.basic