WordPress database error: [Lost connection to MySQL server during query]
SELECT wp_posts.ID FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) INNER JOIN wp_postmeta AS mt2 ON ( wp_posts.ID = mt2.post_id ) WHERE 1=1 AND ( ( wp_postmeta.meta_key = '_is_paid' AND wp_postmeta.meta_value = '1' ) OR wp_postmeta.meta_key = 'rcp_subscription_level' OR ( mt1.meta_key = 'rcp_user_level' AND mt1.meta_value != 'All' ) OR ( mt2.meta_key = 'rcp_access_level' AND mt2.meta_value != 'None' ) ) AND wp_posts.post_type IN ('post', 'page', 'attachment', 'project', 'product', 'sfwd-courses', 'sfwd-lessons', 'sfwd-topic') AND ((wp_posts.post_status = 'publish')) GROUP BY wp_posts.ID ORDER BY wp_posts.post_date DESC