Error Establishing database connection

I have transferred my site from one host to another, change wp-config file but it gave error and asked to repair database. I tried it then it gave me this issue and said to contact here.

Warning: htmlspecialchars(): charset `ANSI_X3.4-1968′ not supported, assuming utf-8 in /home/happyvalentinesd/public_html/wp-includes/formatting.php on line 3203

wp_users: Table ‘happyval_wp544.wp_users’ doesn’t exist
wp_usermeta: Table ‘happyval_wp544.wp_usermeta’ doesn’t exist
wp_posts: Table ‘happyval_wp544.wp_posts’ doesn’t exist
wp_comments: Table ‘happyval_wp544.wp_comments’ doesn’t exist
wp_links: Table ‘happyval_wp544.wp_links’ doesn’t exist
wp_options: Table ‘happyval_wp544.wp_options’ doesn’t exist
wp_postmeta: Table ‘happyval_wp544.wp_postmeta’ doesn’t exist
wp_terms: Table ‘happyval_wp544.wp_terms’ doesn’t exist
wp_term_taxonomy: Table ‘happyval_wp544.wp_term_taxonomy’ doesn’t exist
wp_term_relationships: Table ‘happyval_wp544.wp_term_relationships’ doesn’t exist