[EAC] Kicking X (Bad Authentication)

Code:

[EAC] Kicking 76561198318256951 (Bad Authentication)NullReferenceException: Object reference not set to an instance of an object
  at ServerMgr.AntiCheatKickPlayer (EasyAntiCheat.Server.Legacy.ClientStatusUpdate clientStatus) [0x00000] in <filename unknown>:0
  at EasyAntiCheat.Server.Legacy.EasyAntiCheatServer.HandleUserUpdates (EasyAntiCheat.Server.Legacy.ClientStatusHandler handleStatus) [0x00000] in <filename unknown>:0
  at ServerMgr.EACUpdate () [0x00000] in <filename unknown>:0
(Filename:  Line: -1)

I have a plugin to fix that but i dont know what must be here

Code:

connection.authStatus = "XXX";

What must be on the place of XXX?On standart auth?

 

Isn't legacy still unsupported?