Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in C:\xampp\htdocs\snipe-it\vendor\league\container\src\DefinitionContainerInterface.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\vendor\league\container\src\DefinitionContainerInterface.php on line 12