I recently signed up with Square Appointments and input all my information and services I offer. I checked out the site to see what my clients see when they get to the site to book an appointment. It lets them select the service they want, but it won't let them select the date and time for their appointment or add their information. I have it set up to require a credit card to book an appointment but it won't let them get that far. So, basically, none of my clients have been able to book an appointment. What could be wrong?