If the required LORs are in, then you’re good.
If the second one is required (the want a teacher or other person) and you are not in, you miss the deadline.
So yes. But if you have two teachers in Common for other schools, just use those. and you’ll be good.
But it would be smart to call and ask - perhaps there’s leeway on the LOR timewise as @bksquared noted - and that would get you breathing room.
Good luck.