u built it using webGL?
also check if you have uploaded the correct zipped file
yes it even has the index.html
thats all that i did
the only suggestion i can give you is try building it again in a new folder zip the folder and upload it again if the jam allows you to
If you take down your game file you have on your page, the jam won’t let you reupload a new file. I would leave it like it is.
