Fatal error: Uncaught Error: Class 'Omnipay\Common\AbstractGateway' not found in /home/app/htdocs/ninja/vendor/omnipay/firstdata/src/WebserviceGateway.php:169
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/omnipay/firstdata/src/WebserviceGateway.php on line 169