Go to GOG, or Steam. Paypal won't be available on itch as we are banned for making pornography.
We are based out of Poland.
Maybe I am missing something then?
If I click on the demo, there is this button:
The "here", is this link: https://www.gog.com/game/wet_nightmares
Which goes nowhere.
If it works for you, maybe it is not working for me, because I am german?a