Datepicker don’t open on click

Hello,

I have a problem with the datepicker button, when I click on it nothing happens.
The button don’t work with List, Month and Day view.
For exaple, it says Upcoming, I click on it and nothing happens. In a month view, I have October 2021, I click on it so I can choose another month but again nothing happens. This button simple doesn’t work.
Does anyone had a similar problem and a solution?
Thanks!