Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/S3/ObjectUploader.php:12 Stack trace: #0 {main} thrown in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/S3/ObjectUploader.php on line 12