Fatal error: Uncaught Error: Interface "Aws\Crypto\MaterialsProviderInterface" not found in /home/gmarket/public_html/vendor/composer/50af3e3c/aws-aws-sdk-php-539d523/src/Crypto/MaterialsProvider.php:4 Stack trace: #0 {main} thrown in /home/gmarket/public_html/vendor/composer/50af3e3c/aws-aws-sdk-php-539d523/src/Crypto/MaterialsProvider.php on line 4