NullReferenceException at OnSwitchToggleFixed
Failed to call hook 'OnSwitchToggle' on plugin 'MiniCopterOptions v1.1.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.MiniCopterOptions.OnSwitchToggle (ElectricSwitch eswitch, BasePlayer player) [0x00007] in <b98497c79ffd4cefaa13f9a63946adf5>:0 
  at Oxide.Plugins.MiniCopterOptions.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x001d8] in <b98497c79ffd4cefaa13f9a63946adf5>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <70dc8de1abd4423db5f501c6845edf22>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ac41dd3599754d448b8c218b34645820>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ac41dd3599754d448b8c218b34645820>:0
{
  "Add auto turret to heli": false,
  "Allow Minis to Land on Cargo": true,
  "Drop Storage Loot On Death": true,
  "Fuel per Second": 0.0,
  "Large Storage Containers": 0,
  "Large Storage Lockable": true,
  "Large Storage Size (Max 42)": 42,
  "Lift Fraction": 0.8,
  "Pitch Torque Scale": 700.0,
  "Reload Storage": false,
  "Restore Defaults": true,
  "Roll Torque Scale": 500.0,
  "Seconds to pause flyhack when dismount from heli.": 4,
  "Storage Containers": 0,
  "Yaw Torque Scale": 700.0
}
Had the same, i use the older version v1.1.0 untill this awesome new stuff is fixed :)
From what it seems, the switch is getting created too fast after the turret was created. I am posting an update now, please revert back if fixed. 

Merged post

Please try the new version. And let me know. 
yep fixed cheers mate
Locked automatically