Html5 not work?

i want to upload my game on Crazygames and i give it to request i previewed And there it said:

The index.html file could not be found. Please be sure your project contains one index.html file. The file is used to display the game.

It should have an index.html file in the export. I haven't tried using Crazygames before, but looking at the file upload box, I believe that you need to drag an unzipped folder into there.

@apinguen thanks that fixed the problem