Fatal error: Uncaught Error: Interface 'Flasher\Prime\Stamp\StampInterface' not found in C:\xampp\htdocs\medical-pathway\vendor\php-flasher\flasher\Stamp\UnlessStamp.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\medical-pathway\vendor\php-flasher\flasher\Stamp\UnlessStamp.php on line 10