Warning: require_once(/var/www/html/vendor/aws/sdk.class.php): Failed to open stream: No such file or directory in /var/app/current/classes/dynamodb.php on line 4

Fatal error: Uncaught Error: Failed opening required '/var/www/html/vendor/aws/sdk.class.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/app/current/classes/dynamodb.php:4
Stack trace:
#0 /var/app/current/classes/image_manipulation.php(4): require_once()
#1 /var/app/current/classes/group.php(4): require_once('...')
#2 /var/app/current/appheader.php(35): require_once('...')
#3 /var/app/current/browsetag.3.php(11): require_once('...')
#4 {main}
  thrown in /var/app/current/classes/dynamodb.php on line 4