Lỗi cơ sở dữ liệu WordPress: [Lock wait timeout exceeded; try restarting transaction]UPDATE `wp_postmeta` SET `meta_value` = '{{unknown}}' WHERE `post_id` = 4 AND `meta_key` = '_oembed_f188ed8ebf29fd43a217d52a19cac488'
https://www.youtube.com/watch?v=VOgV-d4uJ9Y