Accept button not clickable

Hello,
I have been using your plugin successfully on various websites. This is the first time I have encountered a problem.
Please have a look at the website I provided for logged-in users.
You can see the GDPR bar at the bottom and there is the accept button called “ROZUMIEM”.
However, it is not clickable – I mean when I click on it, nothing happens. In fact it sould hide the bar.
Also when I click on “Ustawienia” (Settings), the same situation takes place. Is there some JS conflick or what is it about? Please help.
I have the latest versions of the plugin, theme and WordPress.

The page I need help with: [log in to see the link]