Fatal error: Uncaught Error: Class "Illuminate\Database\QueryException" not found in /var/www/html/app/vendor/laravel/framework/src/Illuminate/Database/UniqueConstraintViolationException.php:5
Stack trace:
#0 {main}
thrown in /var/www/html/app/vendor/laravel/framework/src/Illuminate/Database/UniqueConstraintViolationException.php on line 5