Log in at freshharvest.com with the email and password you used before. Once you're in, you'll see a yellow banner at the top that says "Ready to resume deliveries? Select a Basket." Click it, pick your box, and follow the steps from there. You'll confirm your address along the way, and your delivery day is set based on where you live.
Forgot your password? Click "Forgot Password?" on the sign-in page. The reset email usually shows up within a few minutes. If it hasn't after that, it may have landed in your spam folder.