Free version stopped working

We have a message on our listing page stating “The Free version of the Appfolio WordPress plugin has stopped working. Get this version to display your listings”. A google search shows this message on a lot of other sites using Appfolio and the plugin. However, your demo seems to work: https://eagle.listingsforappfolio.com/?utm_source=wp-demo-eagle&utm_medium=wporg

Is the free version being retired?