debag joomla code

I have a joomla website. It is running on Joomla 1.5 and use a gavick template called world news II . It was working okay until a few days ago. One of the components, Frontpage slidshow and a gavick module called news show pro Gk4 is not linking to contents. I need it to be fixed. There are two errors : JDatabaseMySQL::query: 1146 - Table 'radiodem_ethiopianbrief.jos_vm_category' doesn't exist SQL=SELECT c.category_name AS name, c.category_id AS id, x.category_parent_id AS parent FROM jos_vm_category AS c LEFT JOIN jos_vm_category_xref AS x ON x.category_child_id = c.category_id WHERE c.category_publish = 'Y' ORDER BY c.category_name, x.category_parent_id ASC and I found out that when the Front Page Slide Show is accessed the Joomla application accesses the database and tries to execute hundreds of SQL queries to update the jos_content table: UPDATE jos_content SET `metakey` = 'language, joomla, site, packs, localised, installation, translation, select, administrator, extensions, translations, languages, default, teams, logging, menu, admin, releases, released, install' WHERE `id` = 10"