Datepicker not working after Update

Hi..thanks for this great plugin…
but I just updated it, modified the contact form to include this :

[text* date 17/ class:cf7-datepicker placeholder “Select Date”]

but the datepicker is not working anymore.
It was working fine before. the update. Can you please help. Thanks.

http://wordpress.org/plugins/cf7-datepicker-alternative/