RisingWave Community - How to resolve the 'Can't encode empty namespace in url' error when setting up an Iceberg sink in RisingWave?

I'm trying to set up an Iceberg sink in RisingWave using the REST catalog, but I'm encountering an error message that says Can't encode empty namespace in url. Here's the SQL command I used to create the sink:

CREATE SINK s1_sink FROM s1_source
WITH (
    connector='iceberg',
    s3.region = 'us-west-2',
    database.name = 'iceberg_db',
    table.name = 'risingwave_test',
    catalog.type='rest',
    catalog.uri='<http://iceberg-rest.iceberg-rest-catalog.svc.cluster.local:8181>',
    type = 'append-only', warehouse.path='<s3://blahblah/blahblah>', s3.access.key ='', s3.secret.key=''
);

I followed the example from the RisingWave documentation, created the source as described, and made an empty Iceberg table outside of RisingWave. However, I'm unsure about some of the properties in the command, such as warehouse.path, which according to the docs, shouldn't be necessary for REST catalog. Additionally, I'm using AWS Glue as the backend for the REST Catalog and have IRSA set up for the RisingWave ServiceAccount with the correct S3 permissions. Can I use that instead of specifying access_key and secret_key?

CREATE SINK s1_sink FROM s1_source WITH ( connector='iceberg', s3.region = 'us-west-2', database.name = 'iceberg_db', table.name = 'iceberg_db.risingwave_test', catalog.type='rest', catalog.uri='<http://iceberg-rest.iceberg-rest-catalog.svc.cluster.local:8181>', type = 'append-only', warehouse.path='<s3://your-actual-warehouse-path>', s3.access.key='your-access-key', s3.secret.key='your-secret-key' );