Thanks for reporting this! I just double checked and SharedArrayBuffer seems to be enabled (the game is running normally on my browser). Could you please let us know what OS and browser are you using? Maybe using a different browser could help? (e.g., on a Mac, I would recommend Google Chrome)
Viewing post in Bring me a star jam comments
Seems like this is some itch.io bug their game randomizer causes this error when finding your game, but it works fine via direct link. My bad for the false alarm :)
https://itch.io/randomizer?jam_id=402981