Fatal error: Uncaught Error: Interface "Klarna\Rest\Transport\UserAgentInterface" not found in /home/melozbco/public_html/vendor/klarna/kco_rest/src/Klarna/Rest/Transport/UserAgent.php:27 Stack trace: #0 {main} thrown in /home/melozbco/public_html/vendor/klarna/kco_rest/src/Klarna/Rest/Transport/UserAgent.php on line 27