Hi Steve,
What WordPress version and theme are you currently using? This might be permission or plugin conflicts. I’ve also noticed that there are console issues on your site might be one of the causes why it’s not showing up.
You can dynamically update the # of guests and tables once the plugin is already showing on your site. You can check out the demo here: https://easync.syntacticsinc.com/restaurant-booking/
Looking forward to your response!