Correctif bug 500

Resolver/MerchantResolver.php

 use Lc\SovBundle\Solver\Setting\SettingSolver;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
 use Symfony\Component\HttpFoundation\RequestStack;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\Component\Security\Core\Security;
 
             return $this->currentMerchant;
         }
         else {
-            throw new \ErrorException('Aucun merchant courant');
+            throw new NotFoundHttpException('Aucun marchand n\'est défini');
         }
     }