Bronx 10 Miler?

Hi beautiful people, hope you’re having a great week. I’ve been trying to sign up for the Bronx 10 miler in a couple of weeks but can’t seem to get past the NYRR firewall to register. It’s asking for a registration code which I don’t have. Are they limiting registration until a certain point, or does anyone know how to sign up?

Thank you!

Brian⚡️