Fatal error: Uncaught Error: Class "Omnipay\Common\AbstractGateway" not found in /home2/artmentalakademi/public_html/vendor/omnipay/paypal/src/ProGateway.php:10 Stack trace: #0 {main} thrown in /home2/artmentalakademi/public_html/vendor/omnipay/paypal/src/ProGateway.php on line 10