404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=https%3A%2F%2Fnorth-blue.work%2Fmibunrui%2F6053%2Fattachment%2Fwp-1606703076747-jpg&title=wp-1606703076747.jpg was not found on this server. That’s all we know.
/bookmarks/mark?op=add&bkmk=https%3A%2F%2Fnorth-blue.work%2Fmibunrui%2F6053%2Fattachment%2Fwp-1606703076747-jpg&title=wp-1606703076747.jpg