500 Error when user submits form

I'm the administrator for a Joomla site with 2 Chrono forms: http://www.compliglobe.com/contact-compliglobe.html and http://www.compliglobe.com/event-registration.html

When a user submits either form they get a blank page with the following error message:

500 - No valid database connection:
You may not be able to visit this page because of:
an out-of-date bookmark/favourite
a search engine that has an out-of-date listing for this site
a mistyped address
you have no access to this page
The requested resource was not found.
An error has occurred while processing your request.
Please try one of the following pages:

Home Page
If difficulties persist, please contact the System Administrator of this site.

Unfortunately I am the administrator and have no idea why this is happening. The data still seems to go to the database and emails are generated with the data in as well.

Both forms used to work fine but now they don't. One has been edited recently, the other hasn't.

Help!!

Hi gosfield,

I don't know, the 'No valid database connection' message is unusual. I found a few other threads here but the only 'solution' was one where the form was rebuilt.

You might try turning Site Debug on to see if that shows anything useful?

Bob

Thanks GreyHead - The problem seems to have been solved by a friendly developer - although I have no idea what caused the problem in the first place.