Hello,
First of all, your plugin looks great!
But i have a problem. I have 1 location, 3 workers and 3 services.
When i use the shortcode: [[ea_bootstrap worker="1" service="1" location="1" default_date="2018-04-20"]]
Every thing works as expected. and i am able to choose the time
 
When i use the shortcode: [[ea_bootstrap worker="2" service="3" location="1" default_date="2018-04-20"]]
I am not able to choose the time for an appointment but get a message "Please select another day"
The connection is correct.
Could you please help me?
Kind regards
Frank