Getting Access Daniel when I load my app on AWS Amplify using s3 bucket method

I am trying to host my project app in amplify portal using s3 bucket method, what I did:

• Upload zip file project (contain html - JS - css files) into s3 bucket.
• Using s3 bucket method to deploy the app in amplify > upload the zip file project.

Notes: When I upload single file on the s3 bucket then deployed using amplify as html zip file - that works ✅. but when I upload the zip file project (contain html - JS - css files) using s3 bucker method - Doesn’t work > I got Access Denied.