Fatal error: Uncaught Error: Interface "Ratchet\RFC6455\Messaging\DataInterface" not found in C:\melius\michael.douglas\web\prod\credpay\_common\classes\vendor\ratchet\rfc6455\src\Messaging\MessageInterface.php:4 Stack trace: #0 {main} thrown in C:\melius\michael.douglas\web\prod\credpay\_common\classes\vendor\ratchet\rfc6455\src\Messaging\MessageInterface.php on line 4