Fatal error: Uncaught Error: Interface "Psr\EventDispatcher\EventDispatcherInterface" not found in /home/lcanetwork/public_html/qr/vendor/yansongda/pay/src/Contract/EventDispatcherInterface.php:7 Stack trace: #0 {main} thrown in /home/lcanetwork/public_html/qr/vendor/yansongda/pay/src/Contract/EventDispatcherInterface.php on line 7