Usually if you want to get into the first semester the following year, you’d have to apply by late September. It tends to close early because they have interviews and other criteria for acceptance into courses with a selection task, like architecture or design. The usual process is apply and send a selection task before deadline, get an interview offer around the time you finish exams, ace the interview and find out when offers arrive if you got an offer to the course you applied to. I’m not sure what happens if you miss the deadline.
Is there a way to still submit it or do anything? Does that mean im not getting in?
I would probably contact the institute directly and see whether you could apply for the current or later rounds. They’ll be able to guide you as to what you can do now.