Hi MaryI've had that problem with Hostgator.
They recently re-compiled the Perl modules to upgrade them the latest version, and they didn't include one of the XML::RSS modules and my 'zon script stopped working.
I'd hazard a guess you'll find something similar has occurred with your hosting.
I hope you get it sorted soon
Kind regards
Ian
OH and I'm still here, just very busy with other projects at the moment.