It appears that when you renewed your web hosting package, you renewed the web hosting only. You would also need to renew the domain email. To do this you would:
1. Log into your Dynadot account. 2. Scroll down to the "Dynadot Hosting" box. 3. Click the checkbox next to the web hosting name you want to renew the email for. 4. Press the "Add Email" button to add an "email" item to your shopping cart. 5. Proceed with the order checkout and submit your order.