Why there is no product display in Search Result Page?
There are some option you need to check to make the product (hotel, tour, car, rental, activity,..) appear on front page:
The service have been setup available in "Availability" section, included "Check-in/out" date & "Price"
When you create a service, please set "Book before number of day" to 0 to make service can book at current time.
Also after update theme, you should go to Traveler Settings > Sync Availability and Upgrade Data to update database structure for theme properly work.