Fatal error: Uncaught Error: Class 'Guzzle\Plugin\Backoff\AbstractBackoffStrategy' not found in /home/latronic/clients/vendor/aws/aws-sdk-php/src/Aws/S3/SocketTimeoutChecker.php:33 Stack trace: #0 {main} thrown in /home/latronic/clients/vendor/aws/aws-sdk-php/src/Aws/S3/SocketTimeoutChecker.php on line 33