Database Doesn't Exist

I am now getting this message in my buddypress site. It was working perfectly well for over a week. the only thing i did differently was to add ‘Page links To’ plugin, but after the error, i removed it with no luck. Here is the error report. could anyone help me?

wp_181_posts: Table ‘dejagib1_falmouth.wp_181_posts’ doesn’t exist
wp_181_comments: Table ‘dejagib1_falmouth.wp_181_comments’ doesn’t exist
wp_181_links: Table ‘dejagib1_falmouth.wp_181_links’ doesn’t exist
wp_181_options: Table ‘dejagib1_falmouth.wp_181_options’ doesn’t exist
wp_181_postmeta: Table ‘dejagib1_falmouth.wp_181_postmeta’ doesn’t exist
wp_181_terms: Table ‘dejagib1_falmouth.wp_181_terms’ doesn’t exist
wp_181_term_taxonomy: Table ‘dejagib1_falmouth.wp_181_term_taxonomy’ doesn’t exist
wp_181_term_relationships: Table ‘dejagib1_falmouth.wp_181_term_relationships’ doesn’t exist
wp_181_commentmeta: Table ‘dejagib1_falmouth.wp_181_commentmeta’ doesn’t exist