Fatal error: Uncaught Error: Interface 'Aws\Crypto\MaterialsProviderInterface' not found in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/Crypto/MaterialsProvider.php:4 Stack trace: #0 {main} thrown in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/Crypto/MaterialsProvider.php on line 4