An error has occurred: Error executing "DescribeRegions" on "https://ec2.sa-east-1.amazonaws.com"; AWS HTTP error: Client error: `POST https://ec2.sa-east-1.amazonaws.com` resulted in a `401 Unauthorized` response:
<?xml version="1.0" encoding="UTF-8"?>
<Response><Errors><Error><Code>AuthFailure</Code><Message>AWS was not able to val (truncated...)
 AuthFailure (client): AWS was not able to validate the provided access credentials - <?xml version="1.0" encoding="UTF-8"?>
<Response><Errors><Error><Code>AuthFailure</Code><Message>AWS was not able to validate the provided access credentials</Message></Error></Errors><RequestID>a405a104-7def-48f1-91bd-0c668d60e2c5</RequestID></Response>