I can login but loader is not working

[haha]

I am playing on internet cafe but in the lastest version loader I can login but loader is not work . In older version, I can still use loader normally .When I login my account and password, loader just shows "successfully connected" , .. then hides quickly
Log:

Hi! It`s log window.
[Launcher] Checking update.
[Loader] Connecting...
[Loader] Successfully connected!