- You need to check if the Sync Availability tool is been used or not?
If not then go to Theme Options -> Sync Availability to do it. This tool to create data for the availability table for each service.
- Check the room have in that Hotel or not
Each created room need to setup in the Hotel for manage (if the room belong to Hotel)
If you are using WPML, please check that the hotel rooms are translated into another language, change the room number, price or not.
If you are using WPML and you want to turn it off later, before turn off WPML, you need to go to the menu
WPML -> Support -> troubleshooting -> Reset and Deactivate WPML