Joomla!®Plug

Hi,

I tried backing up my site and I got this message afterwards:

Error Loading ModulesMySQL server has gone away SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 2 AND m.client_id = 1 ORDER BY position, ordering
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Clone Manager- mysite.com

Archive Name backup_2009-09-07_17-13_mysite_info-sql-nodrop.tgz
Number of Files 8078
Size of Original File 382.89 MB
Size of Archive 355.23 MB
Database Backup Settings mysite_jo151: Backup Completed ( 207.16 KB )

what's happening? I'm a newbee and don't understand much of what is the error is all about and how I can fix this.