Fatal error: Uncaught Error: Class 'Omnipay\Common\AbstractGateway' not found in /home/app/htdocs/ninja/vendor/lokielse/omnipay-alipay/src/BaseAbstractGateway.php:11 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/lokielse/omnipay-alipay/src/BaseAbstractGateway.php on line 11