This site has moved.
Apps Script web apps often create a time-driven trigger when an action needs to be repeated on a periodic basis. This is the case of Gmail Meter, for example, which send you a new report by email at the beginning of every month.
In some cases, either because there's a specific bug or because you canceled the script's authorizations, you might receive a daily "Summary of failures" email, like this one:
This email contains a link to stop receiving failure notifications, but it is usually not working (see Google Issue Tracker).
Thus, to stop receiving those notifications, best is to follow those steps:
Make sure you are connected in your web browser to the Google account receiving those notifications
In the Apps Script home page, click on "New script" in the top left corner
This will open the Apps Script editor. To use menus and see the list of all active triggers on your account, you will need to rename / save this script project. Then you can use the menu Edit > All your triggers
The list of all triggers linked to your account will be displayed.
If you see only one item in the list, delete it. Else, find the item matching the function name in the email you received:
That's all, once you have removed the right trigger you will stop receiving email notifications.