Error call hook

Hey i get this error on every vehicle.
Vehicle spawns but without Sirens. Spawnmodularcar is up to date.

Failed to call hook 'policehelilarge' on plugin 'PoliceVehicles v1.3.0' (NullReferenceException: )
at (wrapper managed-to-native) UnityEngine.Component.GetComponentFastPath(UnityEngine.Component,System.Type,intptr)
at UnityEngine.Component.GetComponent[T] () [0x00021] in <c8dc2b468d1841099baa4dd8a110cc44>:0
at Oxide.Plugins.PoliceVehicles.spawnentity (BaseVehicle vehicle, System.String spawnentity, UnityEngine.Vector3 position, UnityEngine.Quaternion rotation) [0x0005b] in <7ce8b02e5a654dc1b456e9fd9e295a89>:0
at Oxide.Plugins.PoliceVehicles.policehelilarge (BasePlayer player) [0x00131] in <7ce8b02e5a654dc1b456e9fd9e295a89>:0
at Oxide.Plugins.PoliceVehicles.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x005b7] in <7ce8b02e5a654dc1b456e9fd9e295a89>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <50629aa0e75d4126b345d8d9d64da28d>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <50629aa0e75d4126b345d8d9d64da28d>:0

Changed Status from Pending to Work in Progress

I also get errors when calling the copter.

[Oxide] 20:13 [Error] Failed to call hook 'policeheli' on plugin 'PoliceVehicles v1.3.0' (NullReferenceException: )
  at (wrapper managed-to-native) UnityEngine.Component.GetComponentFastPath(UnityEngine.Component,System.Type,intptr)
  at UnityEngine.Component.GetComponent[T] () [0x00021] in <c8dc2b468d1841099baa4dd8a110cc44>:0
  at Oxide.Plugins.PoliceVehicles.spawnentity (BaseVehicle vehicle, System.String spawnentity, UnityEngine.Vector3 position, UnityEngine.Quaternion rotation) [0x0005b] in <59c2fb447aad450a9e53ef4991aae0ac>:0
  at Oxide.Plugins.PoliceVehicles.policeheli (BasePlayer player) [0x00131] in <59c2fb447aad450a9e53ef4991aae0ac>:0
  at Oxide.Plugins.PoliceVehicles.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00589] in <59c2fb447aad450a9e53ef4991aae0ac>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <60c318df79ed41688ea59335e48d61ad>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <50629aa0e75d4126b345d8d9d64da28d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <50629aa0e75d41

Changed Status from Work in Progress to Closed

Changed Fixed In to 1.3.1