Fatal error: Uncaught Error: Class "PhpSmpp\Pdu\DeliverSm" not found in /home/polishdeid/sites/wilotour.pl/releases/6/vendor/glushkovds/php-smpp/src/Pdu/DeliverReceiptSm.php:9 Stack trace: #0 {main} thrown in /home/polishdeid/sites/wilotour.pl/releases/6/vendor/glushkovds/php-smpp/src/Pdu/DeliverReceiptSm.php on line 9