Fatal error: Uncaught Error: Class "PhpMqtt\Client\Exceptions\MqttClientException" not found in /home/uidn5154/public_html/laravel/vendor/php-mqtt/client/src/Exceptions/ConfigurationInvalidException.php:13 Stack trace: #0 {main} thrown in /home/uidn5154/public_html/laravel/vendor/php-mqtt/client/src/Exceptions/ConfigurationInvalidException.php on line 13