Fatal error: Uncaught Error: Interface "Spiral\Core\Attribute\Plugin" not found in /opt/lampp/htdocs/msjkoperasi/vendor/spiral/core/src/Attribute/Singleton.php:11 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjkoperasi/vendor/spiral/core/src/Attribute/Singleton.php on line 11