Hi Neal.
From your screenshot, I can see that you have renamed “Tickets” to “Bookings”. Therefore, I’m assuming your front-end view of this event has a “Book Now” button instead of the default “Add To Cart” button text.
Regardless, I’m guessing the issue here is in your ticket’s quantity or availability settings.
At the wp-admin screen you took a screenshot of, please click the “Edit” button for the “Small Business Planning” ticket and send me that screenshot. Then, also send me a link to view this event on your website.
Thank you.