UDK Scripted Server

hello there epic games I using UDK as my main engine in the last days I created scripted server there is 3 type of them LobbyServer to let player join to the lobby channelServer to choose channel LoginServer to login the game
this game will be MMOFPS but when I lunch the game or the server from the frontend I get FailToLoadLoginInformation

“Fail To Load Login Information”

I think I doing something wrong but there is no chance its on udk source I totally sure 100%

You talking about UE3 or UE4? UDK is a name of free version of UE3

yes I using UDK, can you help me in my case?

Why nobody help me!