This is fixed in AC Central 3.0, now available as an update in the app stores.

We'll look into that on the apps. As a workaround, you can access old sermons using the Advanced Filters in the browser version at https://accentral.apostolicchristian.org

This has been fixed in AC Central 3.0, now available as an update in the app stores.

We have now transitioned to AC Central 3.0 which includes new apps and website. Search has been restored to the web version.