If you have a Weblogic Bridge Message as the title of a web page and the following message, you have options depending on if you are the End User or the Administrator of the site.
Failure of server APACHE bridge:
No backend server available for connection: timed out after 10 seconds or idempotent set to OFF or method not idempotent.
If you are the end user, all you can do is report the issue to the Information Technology department so that they can investigate.
It is most likely due to a storage failure so flip to your backup or contact your vendor.