Fatal error: Uncaught Error: Interface "Psr\EventDispatcher\EventDispatcherInterface" not found in C:\xampp\htdocs\bilipoa\vendor\web-auth\webauthn-lib\src\Event\NullEventDispatcher.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bilipoa\vendor\web-auth\webauthn-lib\src\Event\NullEventDispatcher.php on line 9