Fatal error: Uncaught Error: Interface "Aws\Crypto\MaterialsProviderInterface" not found in /home/alotaishan/public_html/ots001/vendor/aws/aws-sdk-php/src/Crypto/MaterialsProvider.php:4 Stack trace: #0 {main} thrown in /home/alotaishan/public_html/ots001/vendor/aws/aws-sdk-php/src/Crypto/MaterialsProvider.php on line 4