Hi

In this page:

https://www.happysailing.nl/zeilboot-of-zeiljacht-huren/zeilboot-dufour-325-huren/

The is a schedule for renting a boat. It is a widget from a third party.

The issue is that when I want to click to select the year or month, nothing happens.

This is how the widget should behave:

https://integratie.123boeken.nl/voorbeeld/YFYk99XA8UvVFOn1Js6qlV585T5DME93Pmjn4019t3n75Cb7r6?object_id=69087

I talked to them and they said it's a theme issue. Can you please help?

Thank you very much!