Sorry for the late reply! Can you open the console (By pressing F12) and take a screenshot?
(EDIT 2: I still haven't found the bug, but I have added an option to export and hard reset if the game refuses to load.)
(EDIT: I just realized that itch.io games work differently so you can't access the localStorage, please wait while I am trying to find and fix the bug!)
Also, can you send the save file here? (Open console and run localStorage.getIten(SAVE_NAME) and copy the output)
To reset the game, run localStorage.removeItem(SAVE_NAME) in the console and reload