Fatal error: Uncaught Error: Interface 'Laravel\SerializableClosure\Contracts\Signer' not found in D:\xampp\htdocs\psp\backend\vendor\laravel\serializable-closure\src\Signers\Hmac.php:7
Stack trace:
#0 {main}
thrown in D:\xampp\htdocs\psp\backend\vendor\laravel\serializable-closure\src\Signers\Hmac.php on line 7