'Unknown iTunes Error (11111)' prevents iTunes Store purchases

Like the title says, every time I try to purchase music this error message pops up:

Could not purchase (song title), an unknown error occurred
(11111)
There was an error in the iTunes Store, please try again later.

However, I've been "trying later" for almost a week now and it's becoming very frustrating. has anyone one had a similar experience to this and does anyone know hoe to fix it?

thanks in advance

hey i fixed it. so yeah i guess it just needed an update