WordPress database error: [Lost connection to MySQL server during query]
SELECT ID, post_name, post_parent, post_type
WHERE post_name IN ('van-hoa','mot-phuong-phap-doc-nhat-vo-nhi-giup-bac-si-dau-nganh-tai-my-thoat-khoi-sang-chan-tam-than-nhieu-nam-html')
AND post_type IN ('page','attachment')
This means that we lost contact with the database server at
192.168.110.21. This could mean your host’s database server is down.
If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.