Hello! When the website pops up you can close it clicking on the 'X'. Unfortunately itch.io's "Submission for Great Autumn Game jam 2021" is too long and it blocks input in a good area surrounding it. You can scroll the page (the real one) a little bit and the button will work as expected. You can then play on the phone during the night or go to sleep and start a new day.
I'll update with some changes to fix this when the jam is over. Thank you for playing!