App marked "removed from sale"

I removed my app from sale when Apple informed me it had to be updated. A few days ago I updated the app and submitted it for approval. It was approved shortly thereafter. On the App Store Connect page for the app, I clicked the Availability button for "All regions" and set the price to "Free". But 24 hours later, I'm still seeing "Removed from sale" displayed on that page.

How can I get the app back on sale?