Fatal error: Uncaught Error: Interface "Ratchet\Session\Serialize\HandlerInterface" not found in C:\melius\michael.douglas\web\prod\credpay\_common\classes\vendor\cboden\ratchet\src\Ratchet\Session\Serialize\PhpHandler.php:4 Stack trace: #0 {main} thrown in C:\melius\michael.douglas\web\prod\credpay\_common\classes\vendor\cboden\ratchet\src\Ratchet\Session\Serialize\PhpHandler.php on line 4