fix: catch travel data not found errors to show proper flash message

src/Controller/Booking/Edit/IndexController.php

@@ -10,6 +10,7 @@ use App\BusProNet\Exception\TimeoutException;
 use App\BusProNet\Model\Notification;
 use App\Controller\Booking\Traits;
 use App\Controller\Booking\Traits\BookingExceptionHandlerTrait;
+use App\Exception\TravelNotFoundException;
 use App\Entity\User;
 use App\Form\BookingEditType;
 use App\Form\BookingParticipantType;
@@ -71,7 +72,13 @@ class IndexController extends AbstractController
         $password = $this->crypt->decrypt($user->getPassword());
 
         // Load form data from session (or API on first load)
-        $bookingDto = $this->dataLoader->loadFormData($request, $id, $email, $password);
+        try {
+            $bookingDto = $this->dataLoader->loadFormData($request, $id, $email, $password);
+        } catch (TravelNotFoundException) {
+            $this->addFlash('error', 'Reisedaten sind nicht (mehr) verfügbar');
+
+            return $this->redirectToRoute('app_bookings');
+        }
 
         if (null === $bookingDto) {
             $this->addFlash('error', 'Buchungsdaten nicht (mehr) verfügbar');