Invalid ZIP power automate

[daniel36354750d0yt]

{

"error": {

"code": "INVALID_ZIP",

"message": "The zip file provided has invalid content.; requestId=5b9b461d-2d5a-4fb9-8d34-97781f53310d"

}

}

What can be the reasons? I tried everything, including content in binary and base64. the zip file contains only the index.html file and thats it. Using Powerautomate.

Thank you so much.