if i enter edit accountinfo, i enter the birthdate, but i dont know what to write in above.

It just asks for my birthdate, but there is another panel above, where i have to write in something.

I tryed my account name, email, real name, but nothing works. please help me.
 

i asked a friend. He also tried and said lol. it doesnt works anymore...

Please help. 

hmmm...that's strange...

it shows what that blank is suppose to be for me

the blank is suppose to be your last name

here is a screenshot...