Fatal error: Uncaught Error: Interface "Aws\Crypto\MaterialsProviderInterface" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\aws\aws-sdk-php\src\Crypto\MaterialsProvider.php:4 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\aws\aws-sdk-php\src\Crypto\MaterialsProvider.php on line 4