repair database

On trying to access my website I get the following message: error establishing a database connection, I tried to repair the problem using the repair tool of wordpress but I got the following errors:
wp_gday_users: Table ‘cureandt_wo4197.wp_gday_users’ doesn’t exist
wp_gday_usermeta: Table ‘cureandt_wo4197.wp_gday_usermeta’ doesn’t exist
wp_gday_posts: Table ‘cureandt_wo4197.wp_gday_posts’ doesn’t exist
wp_gday_comments: Table ‘cureandt_wo4197.wp_gday_comments’ doesn’t exist
wp_gday_links: Table ‘cureandt_wo4197.wp_gday_links’ doesn’t exist
wp_gday_options: Table ‘cureandt_wo4197.wp_gday_options’ doesn’t exist
wp_gday_postmeta: Table ‘cureandt_wo4197.wp_gday_postmeta’ doesn’t exist
wp_gday_terms: Table ‘cureandt_wo4197.wp_gday_terms’ doesn’t exist
wp_gday_term_taxonomy: Table ‘cureandt_wo4197.wp_gday_term_taxonomy’ doesn’t exist
wp_gday_term_relationships: Table ‘cureandt_wo4197.wp_gday_term_relationships’ doesn’t exist

my question is do I have any chance to repair it and how?

thank you