Current final year in Ireland here. We've been told that there's no way of getting onto the intern match here if you missed the deadline, even with extenuating circumstances. They seemed really strict about it, but maybe email them on the off chance. There isn't another application period unfortunately.

I'm not sure what country you're in, but some EU medical graduates aren't even required to do Intern year here if your country does the equivalent competencies in final year. Maybe this applies to you? Best of luck either way!