Homepage Search Bar Not Functioning

On QCDayTrips.com, using the Sunset Theme and Default Template, the “Search for a listing” input box on the homepage does not respond when text is entered. Typing a keyword or listing name and pressing Enter has no effect — there are no results, no suggestions, and no change in listings. However, tag-based filters and category selections function normally. The issue appears to be specific to the search bar's text input functionality and may indicate a missing or broken search integration. Please review if this is a bug or something that needs to be activated/configured.