You do not need to provide the broken link as that page does not exist. Use these steps to return to the page where the broken link originated. (program page, search page, from email address + subject line)
1 - Return to the previous browser tab,
titled "Page Not Found".
2 - Click the ◀ Back Button once,
returning to the previous page.
3 - Copy the URL from the address bar and
paste it in the field below.