Yes you can ask them for a rollback like when all was working for you.
Alternatively, you can kindly ask them about your database which seemed offline for a long time – that created the issue. You can show them screenshots with errors like you told us (unable to access wp_options so on)..
wp_users: Table ‘yourfrie_2015.wp_users’ doesn’t exist
wp_usermeta: Table ‘yourfrie_2015.wp_usermeta’ doesn’t exist
wp_posts: Table ‘yourfrie_2015.wp_posts’ doesn’t exist
wp_links: Table ‘yourfrie_2015.wp_links’ doesn’t exist
wp_options: Table ‘yourfrie_2015.wp_options’ doesn’t exist
wp_postmeta: Table ‘yourfrie_2015.wp_postmeta’ doesn’t exist
wp_terms: Table ‘yourfrie_2015.wp_terms’ doesn’t exist
wp_term_taxonomy: Table ‘yourfrie_2015.wp_term_taxonomy’ doesn’t exist
And I explain myself, wp_users obviously exist, because you can login as admin now. So at some point, database was surely offline or so on their end.
It’s a fail I think on their side. Just ask kindly if your database cluster had an issue or so.