​​Hi.
The Closing Days function is used to define intervals where booking is not allowed.
This function works well until Joomla! 3.6.5 but no more with Joomla! 3.7.0.
The problem is that it is impossible to define or modify the dates as the "calendar" button doesn't react.
I made tests with Artio Booking 2.3.9 and also with an old version 2.3.1 with the same bad results.
Using PHP versions 5.4.x or 5.6.x don't change the situation.

Any solution ? Thanks in advance.
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