My existing purchases have INSTALL next to them, but when I try click on them it says "There was an error in the App Store. Please try again later. (100)". I've tried restarting, clearing all caches, buying and downloading new apps (which works). Any idea

Question

Hi - in the app store, I've logged in with no problem, but when I go into my existing purchases and have INSTALL next to everything I've bought, and try to click on them it says;
"There was an error in the App Store. Please try again later. (100)".
I've tried restarting, clearing all caches, buying and downloading new apps (which works), and also buying and downloading more music from iTunes too (so I update all T&C's etc too, and update all payment info). But nothing seems to solve this. Any ideas?? Thanks a lot, Greg

Answer 1

This procedure is a diagnostic test. It makes no changes to your data.
Please triple-click anywhere in the line below on this page to select it:
ls -@Oaen L*/Coo* | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign ($) to appear below what you entered.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.
The Terminal window doesn't show the output. Please don't copy anything from there.