diff --git a/public/typo3conf/ext/ep_products/Classes/Service/ContingentImportService.php b/public/typo3conf/ext/ep_products/Classes/Service/ContingentImportService.php
index 7b2c2dbd..b5d0a880 100644
--- a/public/typo3conf/ext/ep_products/Classes/Service/ContingentImportService.php
+++ b/public/typo3conf/ext/ep_products/Classes/Service/ContingentImportService.php
@@ -271,6 +271,9 @@ class ContingentImportService implements SingletonInterface, LoggerAwareInterfac
                 $roomTypeBusProId = $roomType['link'] ?: $roomType['idBusPro'];
                 $xpath = sprintf('zimmerliste/zimmer[@idbuspro="%d"]', $roomTypeBusProId);
                 $xmlRoom = $xmlDate->xpath($xpath)[0];
+                if (null === $xmlRoom) {
+                    continue;
+                }
                 $this->calculateContingent($xmlRoom, $roomType, $date, $hotelData);
             }
             $dateCount++;