Fatal error: Uncaught CFCredentials_Exception: No credentials were provided. The SDK attempts to retrieve Instance Profile credentials from the EC2 Instance Metadata Service, but doing this requires the "default_cache_config" option to be set in the config.inc.php file or constructor. In order to cache the retrieved credentials. in /home/politec/public_html/migracion/estudiantes/vendor/amazonwebservices/aws-sdk-for-php/sdk.class.php:369 Stack trace: #0 /home/politec/public_html/migracion/estudiantes/vendor/amazonwebservices/aws-sdk-for-php/services/dynamodb.class.php(322): CFRuntime->__construct(Array) #1 /home/politec/public_html/migracion/estudiantes/vendor/amazonwebservices/aws-sdk-for-php/_samples/html-dynamodb_sessions_login.php(43): AmazonDynamoDB->__construct() #2 {main} thrown in /home/politec/public_html/migracion/estudiantes/vendor/amazonwebservices/aws-sdk-for-php/sdk.class.php on line 369