Guys it's fixed, just update the game and create an account inside the game bcuz when you try to login it actually asked for your account id number, and the userjoy account on the website does not have an account id number so don't bother registering on the website. you get the id number only within this game.
I just started this game today and starting to really like it only to look at the notice that the game is shutting down on 30th September.
Is the game doing that poorly?? Even when the anime got a 2nd season?? This really sucks but I guess I'll keep playing until the end.