404. That’s an error.
The requested URL /add?source=atgs&feedurl=http%3A%2F%2Fwww.iow.bg%2F%2Fwww.iow.bg%2Fwp-content%2Fcache%2Fwpfc-minified%2F1e0hbqrt%2Fi257.css was not found on this server. That’s all we know.
/add?source=atgs&feedurl=http%3A%2F%2Fwww.iow.bg%2F%2Fwww.iow.bg%2Fwp-content%2Fcache%2Fwpfc-minified%2F1e0hbqrt%2Fi257.css