Getting Error 9812 when trying to buy music from ITunes store

Question

I want to buy one song from the ITunes Store. I am able to access the song, but when I push the "Buy Song' button, it says "Unable to access Itunes store - an unknown error occurred - 9812". I have tried to fix ITunes through the Control Panel - this did not help. I tried switching ethernet cords - this did not help. I am able to access the internet and receive email so I don't understand why I cannot access the store.

Answer 1

I had this problem just recently.
I discovered that the problem was located here: ROOT / Users / Shared  -- if you open that and the "adi" folder has a little red minus symbol in its corner, your permissions have somehow been lost. (If you can't see your root directory, open Finder Preferences and, under sidebar, check "Hard disks." That will make your root drive visible.)
If the "adi" folder has the red minus symbol, right-click the folder and select GET INFO.
Sharing & Permissions is probably set to "System: Read & Write | wheel: Read Only | everyone: No Access"
If so, your user account has no permissions, and that means iTunes can't use the folder properly.
To fix this, first unlock the folder using the padlock icon in the bottom-right corner of "get info." You will have to supply your admin password to do this.
Then click the little + sign in the bottom left corner to add a user, and select your user ID from the list of choices. Give yourself Read & Write permissions. (Alternatively, you could change the permissions of "everyone" to Read & Write; others have done that, but I was leery of doing it).
Re-lock the folder when you're done.
Hopefully that will solve it.