Database Corrupted – unable to access, backup or update

I was unable to backup the DB so I could update to the latest 5.1 version. I got the following errors and the database crashed. I cannot access the site. I am the only admin/user and haven’t changed anything since my last admin access about a year ago. The error msgs look like the site was hacked. If I could run the latest backup (created about 14 months ago) it would probably be OK since nothing was changed by me. But I cannot access the site. site is:

Error Msgs:
Some database problems could not be repaired. Please copy-and-paste the following list of errors to the WordPress support forums to get additional assistance.
wp_usermeta: 4 clients are using or haven’t closed the table properly
wp_posts: 2 clients are using or haven’t closed the table properly
wp_options: Table is marked as crashed
wp_postmeta: 2 clients are using or haven’t closed the table properly
wp_terms: 1 client is using or hasn’t closed the table properly
wp_term_taxonomy: 1 client is using or hasn’t closed the table properly
wp_term_relationships: 1 client is using or hasn’t closed the table properly

The page I need help with: [log in to see the link]