Fatal error: Uncaught Error: Class "Omnipay\Common\AbstractGateway" not found in /home/oyaagyug/public_html/vendor/omnipay/migs/src/TwoPartyGateway.php:12 Stack trace: #0 {main} thrown in /home/oyaagyug/public_html/vendor/omnipay/migs/src/TwoPartyGateway.php on line 12