Fatal error: Uncaught Error: Class "Aws\AbstractConfigurationProvider" not found in C:\WebServer\htdocs\bookshelf\vendor\aws\aws-sdk-php\src\ClientSideMonitoring\ConfigurationProvider.php:45 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\aws\aws-sdk-php\src\ClientSideMonitoring\ConfigurationProvider.php on line 45