Flex Viewer Search Periodically does not Search

Has anybody had a problem with the Flex Viewer Search Widget periodically not working for a short period of time, than continuing to work again? When it does not work, if the search button is clicked, it does not do anything. I have been unable to narrow it down to a certain time of day that these outages occur, but they are usually maybe 15-30 min. in length.

http://maps.hamiltontn.gov/hcflex/

Is a link to my site. It is the Search Widget (binoculars) where the problem occurs. If anybody has a solution, or any tips that might be causing this. Your input would be greatly appreciated.

Thanks,
Ray