Fatal error: Uncaught Error: Class 'Omnipay\AuthorizeNet\Message\SIMAbstractRequest' not found in /home/app/htdocs/lidia/vendor/omnipay/authorizenet/src/Message/SIMAuthorizeRequest.php:8
Stack trace:
#0 {main}
thrown in /home/app/htdocs/lidia/vendor/omnipay/authorizenet/src/Message/SIMAuthorizeRequest.php on line 8