We have checked your site it’s working fine. For your reference, we have made a test ( therapist ) and booked several appointments. If the therapist has been booked by another user the time slots will not be available in the front end to book an appointment by the current user.
If you are happy with our support, kindly rate us. Have a look at the video for the rating process.http://recordit.co/YqdTBuEJRm Hoping for a 5-star rating from your end 🙂