I have checked the “Skip search results page and enable direct booking from accommodation pages.” box. But now when I click on the Check Availability, it just refreshes the page without changing anything.
Thank you for your question. First check if you use latest version of Hotel Booking plugin – 3.7.5. Also, make sure you have created Checkout Page with [mphb_checkout] shortcode and set up this page as Checkout page via Accommodation > Settings.