Subscriptions aren't recurring properly

Hi,

I'm using 2checkout with my membership plugin. I have a test subscription set up to recur every 1 day and charge $1. This is live -- not sandbox. The subscription is set to "serial."

It has now been 30 hours since I test purchased a subscription and it has not renewed. When I logged into 2checkout and checked the purchase, it is set to "no" under "recurring?."

What have I done wrong? A screenshot of the subscription setup is attached.

Thanks!