Hey guys. Im having this error on one of my servers for the last few weeks.
Any one have a clue on witch plugins there could cause that? have many plugs installed, and all is up-to-date.
the only plugin for cars and stuff is: VehicleLicence
the error only happens when players exit or dismount a vehicle.
Thanks in advance guys! <3

  at BaseEntity.ForceUpdateTriggers (System.Boolean enter, System.Boolean exit, System.Boolean invoke) [0x00157] in <44a96a5248004081b4f4e638e681026d>:0 
  at BaseMountable.DismountPlayer (BasePlayer player, System.Boolean lite) [0x001b2] in <44a96a5248004081b4f4e638e681026d>:0 
  at BaseMountable.AttemptDismount (BasePlayer player) [0x00010] in <44a96a5248004081b4f4e638e681026d>:0 
  at BaseMountable.RPC_WantsDismount (BaseEntity+RPCMessage msg) [0x00021] in <44a96a5248004081b4f4e638e681026d>:0 
  at BaseMountable.OnRpcMessage (BasePlayer player, System.UInt32 rpc, Network.Message msg) [0x00095] in <44a96a5248004081b4f4e638e681026d>:0 
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
BaseMountable:OnRpcMessage(BasePlayer, UInt32, Message)
BaseEntity:SV_RPCMessage(UInt32, Message)
ServerMgr:OnRPCMessage(Message)
ServerMgr:OnNetworkMessage(Message)
Facepunch.Network.Raknet.Server:ConnectedPacket(Connection)
Facepunch.Network.Raknet.Server:Cycle()
ServerMgr:Update()
 Player Luuxen has left the server. Reason Kicked: RPC Error in RPC_WantsDismount

Re-installed the server and now it works again.. 

Most likely there was no space space to dismount, Maybe trying to glitch through a wall or something on dismounting or something on top of the car wich disallow dismounting

not even a glitch or wall, any horse , chair car and mountables made that error 

i been seeing that randomly too since the couch was introduced

backup'ed everything and Re-installed that worked for me, didnt see the error since