Hi odpadlik! The game won't load if you have adblocker or popup blockers enabled. We've also discovered recently that Unity WebGL doesn't always work on MacOS Big Sur. :(
This game was submitted to a game jam and is currently in the ratings phase so we can't change it right now. After the jam ends we will upload a Windows and a Mac build, and also fix the MacOS issue. Hope you come back and give it another try!