Fatal error: Uncaught Error: Class "Aws\Crypto\MaterialsProvider" not found in /home/paathamus/public_html/awsSms/Aws/Crypto/KmsMaterialsProvider.php:9 Stack trace: #0 {main} thrown in /home/paathamus/public_html/awsSms/Aws/Crypto/KmsMaterialsProvider.php on line 9