You are aware that there is a 9-minute throttle limit on the URL? That is, the URL can only be used after 9 minutes since the last time it was used. If you've got too many devices, or have set them to poll too frequently, then you'll run into this problem.
Have you searched the
Help Center? Try doing a Google search and adding "site:churchofjesuschrist.org/help" to the search criteria.
So we can better help you, please edit your
Profile to include your general location.