Hi thanks for your submission! It seems like your build is WebGL but cannot run on itch.io and i personally don't prefer downloading game files. Well if you have time left, I may have a solution to the error and can you export it again to the jam again ty: Go to Edit > Project Settings > WebGL Settings > Publishing Settings > (Enable Exception: None; Compression Format: Disabled; Data Caching: False; Decompression Fallback: True; At least this worked for me