Fatal error: Uncaught Error: Interface "Respect\Stringifier\Stringifier" not found in D:\Apache24\www\ys_gs1\back-end\vendor\respect\stringifier\src\Stringifiers\JsonSerializableStringifier.php:25 Stack trace: #0 {main} thrown in D:\Apache24\www\ys_gs1\back-end\vendor\respect\stringifier\src\Stringifiers\JsonSerializableStringifier.php on line 25