Day/Time Selection not working in Appointments+

Hi There,
Testing out the plugin on a template site and am running into a problem with the free days. When you click on them the times for that day don't show up, it does once in a while and for only a few of the days then stops working again. Test appointment I did create with one of the days it does allow seemed to work fine.
I have opened up the site to support access.

Take care,
K