If you have turned the auto-renewal feature off, you will see a red triangle badge on your photo/name button at the top right of the website.

To turn auto-renewal back on, log into the website. the click on the button at the top right with your photo and name, and choose Membership from the drop-down menu.

Click on the Turn on Auto-Renewal button at the bottom.

Finally, click on the Turn On Auto-Renewal button in the popup window to confirm your choice.