Why do i keep getting this spam?

[Traffic Drivers] Traffic car was sucessfully spawned!
Invalid Position: player_corpse[8431851] (0.0, -999.1, 0.0) (destroying)
Invalid Position: item_drop_backpack[8431878] (0.0, -999.0, 0.0) (destroying)

  11:31 [Info] TrafficDrivers was compiled successfully in 2521ms
11:31 [Info] [Traffic Drivers] Recorded paths not found, load standard Rust roads
11:31 [Error] Failed to call hook 'SpawnTrafficCar' on plugin 'TrafficDrivers v1.2.97' (NullReferenceException: Object reference not set to an instance of an object)
  at ItemContainer.Insert (Item item) [0x00026] in <de79ae7cf8d4472990e822a6b32a19ef>:0 
  at Oxide.Plugins.TrafficDrivers.SpawnTrafficCarParams (UnityEngine.Vector3[] path, UnityEngine.Vector3 position, Oxide.Plugins.TrafficDrivers+TrafficDriver+DriveSide side) [0x002a3] in <23559a22c35e4707b350709333585d8f>:0 
  at Oxide.Plugins.TrafficDrivers.SpawnTrafficCar () [0x00051] in <23559a22c35e4707b350709333585d8f>:0 
  at Oxide.Plugins.TrafficDrivers.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00313] in <23559a22c35e4707b350709333585d8f>: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 

are you using a custom map? can i also see your config, it seems like something wrong with it

Changed Status from Pending to Closed

no not custom map.