AWS S3 Bucket Policy Network Failure - verify permissions to access-analyzer:ValidatePolicy in IAM to use policy validation

Question

In AWS Solution Architect I am performing Module 3 Challenge Lab Creating a Static Website for the Cafe using AWS S3.

I want to Grant read-only permission to anonymous user I followed documentation and pasted the required JSON code in my bucket policy

my Bucket Policy :

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PublicRead",
            "Effect": "Allow",
            "Principal": "*",
            "Action": [
                "s3:GetObject",
                "s3:GetObjectVersion"
            ],
            "Resource": [
                "arn:aws:s3:::website-22-4-28-main/*"
            ]
        }
    ]
}

I am getting the following error message for the above bucket policy

I would like to know how can I resolve this error. TIA