Fatal error: Uncaught Error: Interface 'Aws\Crypto\MaterialsProviderInterface' not found in /home/wwvicp/public_html/API2/vendor/aws/aws-sdk-php/src/Crypto/MaterialsProvider.php:4 Stack trace: #0 {main} thrown in /home/wwvicp/public_html/API2/vendor/aws/aws-sdk-php/src/Crypto/MaterialsProvider.php on line 4