POST /v1/blobstores/s3 fails with 500 internal error

{
    "bucketConfiguration": {
        "bucket": {
            "expiration": "5",
            "name": "<string>",
            "region": "<string>",
            "prefix": "<string>"
        },
        "encryption": {
            "encryptionType": "<string>",
            "encryptionKey": "<string>"
        },
        "bucketSecurity": {
            "accessKeyId": "<string>",
            "secretAccessKey": "<string>",
            "role": "<string>",
            "sessionToken": "<string>"
        },
        "advancedBucketConnection": {
            "endpoint": "<string>",
            "signerType": "<string>",
            "forcePathStyle": "true"
        }
    },
    "name": "<string>"
}