I just signed up for a new account and this account can't be operated AT ALL. I need to join to a group but everytime I tried the link it says "UNKNOWN ERROR OCCURED". I also tried to use this Line Help feature but I need to add them as friend which I COULDN'T DO EITHER, it won't budge no matter how manu time I tried to add friend. Can't either add any official account nor friends by ID. So what is this app all about???? FIX IT RIGHT AWAY.