[flexcoders] What does this error message mean

[nostra72]

When I try to access this url http://localhost:8700/samples/flexstore/flexstore.mxml?versionChecked=true I get a 580 server error does that mean there working on the server because I have the Integrated Flex server running Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/   To unsubscribe from this group, send an email to: [EMAIL PROTECTED]   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.