Interact with your tables and data inside CARTO, as if you were running SQL statements.
Ensure that you are using the latest version of our SQL API. For example, you can check that you are using Version 2 by looking at your request URLS. They should all contain /v2/ in the URLs as follows, https://{username}.carto.com/api/v2/sql
https://{username}.carto.com/api/v2/sql