from error_log file:
[19-Mar-2020 18:31:05 UTC] WordPress database error Table './WP/wp_top_ten_daily' is marked as crashed and should be repaired for query INSERT INTO wp_top_ten_daily (postnumber, cntaccess, dp_date, blog_id) VALUES( 31790, '1', '2020-03-20 01', 1 ) ON DUPLICATE KEY UPDATE cntaccess= cntaccess+1 made by require('wp-blog-header.php'), wp, WP->main, WP->parse_request, do_action_ref_array('parse_request'), WP_Hook->do_action, WP_Hook->apply_filters, tptn_parse_request, tptn_update_count