Fatal error: Uncaught Error: Interface "Iyzipay\HttpClient" not found in /home/eui9b4xs/public_html/dfy/vendor/iyzico/iyzipay-php/src/Iyzipay/DefaultHttpClient.php:5 Stack trace: #0 {main} thrown in /home/eui9b4xs/public_html/dfy/vendor/iyzico/iyzipay-php/src/Iyzipay/DefaultHttpClient.php on line 5