fix: return 404 page for invalid travelinfo urls

public/typo3conf/ext/ep_products/Classes/Controller/TravelinfoController.php

@@ -33,6 +33,7 @@ class TravelinfoController extends ActionController
     {
         /** @var Date $date */
         $date = $this->dateRepository->findOneByBusProId($busProId);
+
         $travelinfo = $this->travelInfoRepository->findOneByProduct($date->getProduct());
 
         if (null === $travelinfo) {
@@ -60,6 +61,15 @@ class TravelinfoController extends ActionController
 
         /** @var Date $date */
         $date = $this->dateRepository->findForProductAndDate($product, $travelDate)->getFirst();
+
+        if (null === $date) {
+            $response = GeneralUtility::makeInstance(ErrorController::class)->pageNotFoundAction(
+                $GLOBALS['TYPO3_REQUEST'],
+                'Reiseinformationen nicht gefunden'
+            );
+            throw new ImmediateResponseException($response, 1731071856);
+        }
+
         $hasCourses = 0 < count($date->getServicesGeneral('KUR'));
 
         $this->view->assign('travelinfo', $travelinfo);