Ciao ragazzi, non so cosa ho toccato fatto sta che nella pagina principale del mio sito spunta questo errore:

Fatal error: Uncaught exception Exception with message Query error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 (SELECT * FROM cat_categorie_spettacoli WHERE id IN (0) ORDER BY ) thrown in /web/htdocs/www.ilsestante.net/home/system/libraries/Database.php on line 642
#0 /web/htdocs/www.ilsestante.net/home/system/libraries/Database.php(589): Database_Statement->query()
#1 /web/htdocs/www.ilsestante.net/home/system/modules/catalog/ModuleCatalog.php(2065): Database_Statement->execute()
#2 /web/htdocs/www.ilsestante.net/home/system/modules/catalog/ModuleCatalogList.php(216): ModuleCatalog->parseCatalog(Object(DB_Mysql_Result), true, 'catalog_in_evid...', Array)
#3 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/Module.php(129): ModuleCatalogList->compile()
#4 /web/htdocs/www.ilsestante.net/home/system/modules/catalog/ModuleCatalog.php(130): Module->generate()
#5 /web/htdocs/www.ilsestante.net/home/system/modules/catalog/ModuleCatalogList.php(76): ModuleCatalog->generate()
#6 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/ContentModule.php(72): ModuleCatalogList->generate()
#7 /web/htdocs/www.ilsestante.net/home/system/libraries/Controller.php(415): ContentModule->generate()
#8 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/ModuleArticle.php(173): Controller->getContentElement('83')
#9 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/Module.php(129): ModuleArticle->compile()
#10 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/ModuleArticle.php(71): Module->generate()
#11 /web/htdocs/www.ilsestante.net/home/system/libraries/Controller.php(348): ModuleArticle->generate(false)
#12 /web/htdocs/www.ilsestante.net/home/system/libraries/Controller.php(221): Controller->getArticle('29', false, false, 'main')
#13 /web/htdocs/www.ilsestante.net/home/system/modules/frontend/PageRegular.php(71): Controller->getFrontendModule('0', 'main')
#14 /web/htdocs/www.ilsestante.net/home/index.php(198): PageRegular->generate(Object(DB_Mysql_Result))
#15 /web/htdocs/www.ilsestante.net/home/index.php(329): Index->run()
#16 {main}

Di cosa si tratta? come posso risolvere?