NullReferenceException at BaseMountable.EyePositionForPlayerError

Hello.

Players on my server get kicked when they mount a mini. I get this error:

Anyone know what is causing this? Tried to remove some plugins but nothing helps.

Thanks in advance.

Server Exception: Player Update
Server Exception: Player Update 
NullReferenceException: Object reference not set to an instance of an object
NullReferenceException: Object reference not set to an instance of an object
  at BaseMountable.EyePositionForPlayer (BasePlayer player, UnityEngine.Quaternion lookRot) [0x00014] in <19eba849070f4b8a90332252df1afb6a>:0 
  at PlayerEyes.get_position () [0x00031] in <19eba849070f4b8a90332252df1afb6a>:0 
  at BasePlayer.EACStateUpdate () [0x00027] in <19eba849070f4b8a90332252df1afb6a>:0 
  at BasePlayer.FinalizeTick (System.Single deltaTime) [0x0022d] in <19eba849070f4b8a90332252df1afb6a>:0 
  at BasePlayer.ServerUpdate (System.Single deltaTime) [0x00029] in <19eba849070f4b8a90332252df1afb6a>:0 
  at BasePlayer.ServerCycle (System.Single deltaTime) [0x00087] in <19eba849070f4b8a90332252df1afb6a>:0 
  at ServerMgr.Update () [0x000cd] in <19eba849070f4b8a90332252df1afb6a>:0 
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception, Object)
ServerMgr:Update()
disconnecting: Exception (cs:52586): NullReferenceException: Object reference not set to an instance of an object. BaseMountable.EyePositionForPlayer (BasePlayer player, UnityEngine.Quaternion lookRot) (at <00000000000000000000000000000000>:0) PlayerEyes.get_position () (at <00000000000000000000000000000000>:0) Facepunch.UI.ESPPlayerInfo.UpdateColor () (at <00000000000000000000000000000000>:0) Facepunch.UI.ESPPlayerInfo.LateUpdate () (at <00000000000000000000000000000000>:0)​

This is the disconnetc message i get when they get kicked
Do They Get Minis From Airwolf Or Roads. Because I Have Had A Issue Where They Spawn on Roads And It Kicks People For Flyhack
From airwolf and SpawnMini plugin. 

Merged post

No one knows?
i belive its a problem with the game its self