Oh, I didn't noticed you posted a link to the web build, LOL. The web build seems to works well. The desktop still not working after I tried to delete these JSON files, but it's ok. Big thanks for your support.
Obrigado! Language settings seem to be the common factor. I'll look into fixing this but no telling how long it will take. Luckily the web version seems ok. Thank you for raising the issue, it'll definitely be addressed by next year ;)