diff --git a/packages/ep_products/Classes/Controller/AjaxTableController.php b/packages/ep_products/Classes/Controller/AjaxTableController.php
index 0023b37..afd71e4 100644
--- a/packages/ep_products/Classes/Controller/AjaxTableController.php
+++ b/packages/ep_products/Classes/Controller/AjaxTableController.php
@@ -126,7 +126,7 @@ class AjaxTableController extends ActionController
         ?string $dateFrom = null,
         ?string $dateTo = null
     ): ResponseInterface {
-        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'] ?? '', true);
         $filterSettings = $this->filterService->getNormalizedFilterSettings([], $forcedConceptUids);
         $filterSettings['dateFrom'] = $dateFrom;
         $filterSettings['dateTo'] = $dateTo;
@@ -184,7 +184,7 @@ class AjaxTableController extends ActionController
         $hasSurchargeOrDiscount = $this->dateService->checkSurcharcheOrDiscount($allDates);
 //        $hasIncludedServices = $this->dateService->hasIncludedServices($allDates);
         $hasIncludedServices = true;
-        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids']);
+        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids'] ?? '');
         $isProductWithNoInfoConcept = ($product->getConcept() !== null) && \in_array($product->getConcept()->getUid(),
                 $noInfoConceptUids, false);
 
@@ -223,7 +223,7 @@ class AjaxTableController extends ActionController
         Date $date,
         bool $singleDate = false
     ): ResponseInterface {
-        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'], true);
+        $forcedConceptUids = GeneralUtility::trimExplode(',', $this->settings['forcedConceptUids'] ?? '', true);
         $filterSettings = $this->filterService->getNormalizedFilterSettings([], $forcedConceptUids);
         $myEpUrl = $this->myEpUrlResolverService->resolve();
 
@@ -242,7 +242,7 @@ class AjaxTableController extends ActionController
         $dateEnd = $date ? $date->getDateEnd()->format('d.m.y') : '';
         $dateRange = sprintf('%s - %s', $dateStart, $dateEnd);
 
-        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids']);
+        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids'] ?? '');
         $isProductWithNoInfoConcept = ($product->getConcept() !== null) && \in_array($product->getConcept()->getUid(), $noInfoConceptUids);
 
         $nonBookableInfo = $this->getNonBookableInfobox($product);
@@ -298,7 +298,7 @@ class AjaxTableController extends ActionController
      */
     public function eventPricetableAction(Product $product): ResponseInterface
     {
-        $roomTypes = GeneralUtility::trimExplode(',', $this->settings['priceTableRoomTypes']);
+        $roomTypes = GeneralUtility::trimExplode(',', $this->settings['priceTableRoomTypes'] ?? '');
         $roomTypesPax = array_map(function ($type) {
             return (int) $type;
         }, $roomTypes);
@@ -326,7 +326,7 @@ class AjaxTableController extends ActionController
             'pricetable' => $priceTable,
             'hasIncludedServices' => $hasIncludedServices,
             'categories' => $categories,
-            'themekey' => $this->settings['themekey'],
+            'themekey' => ($this->settings['themekey'] ?? null),
             'nonBookableInfo' => $nonBookableInfo,
             'myEpUrl' => $myEpUrl,
         ]);
diff --git a/packages/ep_products/Classes/Controller/ProductController.php b/packages/ep_products/Classes/Controller/ProductController.php
index 9bc3f8a..30e1562 100644
--- a/packages/ep_products/Classes/Controller/ProductController.php
+++ b/packages/ep_products/Classes/Controller/ProductController.php
@@ -130,8 +130,8 @@ class ProductController extends ActionController
     ): ResponseInterface {
         // Get product to display from flexform settings if not provided via url
         if ($product === null) {
-            $productUid = $this->settings['productUid'];
-            $product = $this->productRepository->findByIdentifier($productUid);
+            $productUid = ($this->settings['productUid'] ?? null);
+            $product = $productUid ? $this->productRepository->findByIdentifier($productUid) : null;
         }
         // Redirect to search page in case no product can be determined
         if ($product === null) {
@@ -141,12 +141,12 @@ class ProductController extends ActionController
                 'Search',
                 null,
                 ['filterSettings' => $filterSettings],
-                $this->settings['defaultSearchPageUid']
+                ($this->settings['defaultSearchPageUid'] ?? null)
             );
         }
         // Get hotel to display from flexform settings if not provided via url
-        if ((int)$this->settings['hotelUid'] > 0) {
-            $hotelUid = $this->settings['hotelUid'];
+        if ((int)($this->settings['hotelUid'] ?? null) > 0) {
+            $hotelUid = ($this->settings['hotelUid'] ?? null);
             $hotel = $this->hotelRepository->findByIdentifier($hotelUid);
         }
         if ($hotel === null) {
@@ -165,11 +165,11 @@ class ProductController extends ActionController
         }
 
         $concept = $product->getConcept();
-        $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids'], true);
+        $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids'] ?? '', true);
         $isProductWithExcludedConcept = ($concept !== null) && \in_array($concept->getUid(), $excludedConceptUids);
-        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids'], true);
+        $noInfoConceptUids = GeneralUtility::trimExplode(',', $this->settings['noInfoConceptUids'] ?? '', true);
         $isProductWithNoInfoConcept = ($concept !== null) && \in_array($concept->getUid(), $noInfoConceptUids);
-        $groupInquiryFormConceptUids = GeneralUtility::trimExplode(',', $this->settings['groupInquiryFormConceptUids'], true);
+        $groupInquiryFormConceptUids = GeneralUtility::trimExplode(',', $this->settings['groupInquiryFormConceptUids'] ?? '', true);
         $isProductWithGroupInquiryForm = ($concept !== null) && \in_array($concept->getUid(), $groupInquiryFormConceptUids);
         $nonBookableInfo = $product->getNonBookableInfo();
 
@@ -198,10 +198,10 @@ class ProductController extends ActionController
 
     public function pricetableAction(): ResponseInterface
     {
-        $productUid = $this->settings['productUid'];
+        $productUid = ($this->settings['productUid'] ?? null);
         /** @var Product $product */
         $product = $this->productRepository->findByIdentifier($productUid);
-        $hotelUid = $this->settings['hotelUid'];
+        $hotelUid = ($this->settings['hotelUid'] ?? null);
         /** @var Hotel $hotel */
         $hotel = $this->hotelRepository->findByIdentifier($hotelUid);
         $pricetable = $this->dateService->getPriceTable([
@@ -230,14 +230,14 @@ class ProductController extends ActionController
     public function teasergroupAction(): ResponseInterface
     {
         $filterSettings = $this->filterService->getFiltersettingsFromSettings($this->settings);
-        $dateAuto = !$this->settings['dateFrom'] && !$this->settings['dateTo'];
-        $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids'], true);
-        $limit = $this->settings['hideMoreLink'] ? 0 : 6;
+        $dateAuto = !($this->settings['dateFrom'] ?? null) && !($this->settings['dateTo'] ?? null);
+        $excludedConceptUids = GeneralUtility::trimExplode(',', $this->settings['excludedConceptUids'] ?? '', true);
+        $limit = ($this->settings['hideMoreLink'] ?? null) ? 0 : 6;
         $teasers = $this->productDataService->getTeasergroup($filterSettings, $excludedConceptUids, $limit);
-        $dateFrom = $this->settings['dateFrom']  ? date('Y-m-d', $this->settings['dateFrom']) : null;
-        $dateTo = $this->settings['dateTo'] ? date('Y-m-d', $this->settings['dateTo']) : null;
+        $dateFrom = ($this->settings['dateFrom'] ?? null)  ? date('Y-m-d', ($this->settings['dateFrom'] ?? null)) : null;
+        $dateTo = ($this->settings['dateTo'] ?? null) ? date('Y-m-d', ($this->settings['dateTo'] ?? null)) : null;
         $data = $this->request->getAttribute('currentContentObject')->data;
-        $nonBookableInfo = $this->settings['infoboxUid'] ? $this->infoboxRepository->findByUid($this->settings['infoboxUid']) : $this->infoboxRepository->getDefault();
+        $nonBookableInfo = ($this->settings['infoboxUid'] ?? null) ? $this->infoboxRepository->findByUid($this->settings['infoboxUid']) : $this->infoboxRepository->getDefault();
 
         $this->view->assign('data', $data);
         $this->view->assign('teasers', $teasers);
diff --git a/packages/ep_products/Classes/Service/DateService.php b/packages/ep_products/Classes/Service/DateService.php
index 95e54eb..52f4bf1 100644
--- a/packages/ep_products/Classes/Service/DateService.php
+++ b/packages/ep_products/Classes/Service/DateService.php
@@ -267,7 +267,7 @@ class DateService implements SingletonInterface
             }
             if (!array_key_exists($key, $processed)) {
                 $processed[$key] = [
-                    'label' => $this->serviceSections[$key],
+                    'label' => $this->serviceSections[$key] ?? null,
                     'services' => [],
                 ];
             }
@@ -436,7 +436,7 @@ class DateService implements SingletonInterface
     public function hasIncludedServices(array $tableData): bool
     {
         foreach ($tableData as $row) {
-            if ($row['busIncluded'] || $row['skiPassIncluded']) {
+            if (($row['busIncluded'] ?? null) || ($row['skiPassIncluded'] ?? null)) {
                 return true;
             }
         }
@@ -516,10 +516,10 @@ class DateService implements SingletonInterface
         ];
 
         foreach ($tableData as $row) {
-            if ($row['busPrice'] && $row['busPrice'] > 0) {
+            if (($row['busPrice'] ?? null) && $row['busPrice'] > 0) {
                 $data['surcharge'] = true;
             }
-            if ($row['discount'] && $row['discount'] < 0) {
+            if (($row['discount'] ?? null) && $row['discount'] < 0) {
                 $data['discount'] = true;
             }
         }
diff --git a/packages/ep_products/Classes/Service/HotelDataService.php b/packages/ep_products/Classes/Service/HotelDataService.php
index e5fa649..9a37881 100644
--- a/packages/ep_products/Classes/Service/HotelDataService.php
+++ b/packages/ep_products/Classes/Service/HotelDataService.php
@@ -88,20 +88,20 @@ class HotelDataService implements SingletonInterface
         return [
             'minDateStart' => $dateStart,
             'maxDateEnd' => $dateEnd,
-            'minPrice' => $hotelData['minPrice'],
-            'pseudoPrice' => $hotelData['pseudoPrice'],
-            'available' => $hotelData['available'],
-            'detailPage' => $hotelData['hotelDetailPage'],
-            'name' => $hotelData['hotelName'],
-            'teaser' => $hotelData['hotelTeaser'],
+            'minPrice' => $hotelData['minPrice'] ?? null,
+            'pseudoPrice' => $hotelData['pseudoPrice'] ?? null,
+            'available' => $hotelData['available'] ?? null,
+            'detailPage' => $hotelData['hotelDetailPage'] ?? null,
+            'name' => $hotelData['hotelName'] ?? null,
+            'teaser' => $hotelData['hotelTeaser'] ?? null,
             'category' => $hotelCategory,
             'images' => $this->hotelImageService->getImages($hotelUid),
             'country' => [
-                'name' => $hotelData['country'],
-                'code' => $hotelData['countryCode'],
+                'name' => $hotelData['country'] ?? null,
+                'code' => $hotelData['countryCode'] ?? null,
             ],
             'region' => [
-                'name' => $hotelData['regionName'],
+                'name' => $hotelData['regionName'] ?? null,
             ]
         ];
     }
diff --git a/packages/ep_products/Classes/Service/ProductDataService.php b/packages/ep_products/Classes/Service/ProductDataService.php
index f1d65b2..f8085cc 100644
--- a/packages/ep_products/Classes/Service/ProductDataService.php
+++ b/packages/ep_products/Classes/Service/ProductDataService.php
@@ -131,11 +131,11 @@ class ProductDataService implements SingletonInterface
                 $teaser['dates'][] = $row['dateStart'];
             }
 
-            if (!$teaser['skiPassIncluded'] && $row['skiPassIncluded']) {
+            if (!($teaser['skiPassIncluded'] ?? false) && ($row['skiPassIncluded'] ?? null)) {
                 $teaser['skiPassIncluded'] = true;
             }
 
-            if (!$teaser['busIncluded'] && $row['busIncluded']) {
+            if (!($teaser['busIncluded'] ?? false) && ($row['busIncluded'] ?? null)) {
                 $teaser['busIncluded'] = true;
             }
 
@@ -182,47 +182,47 @@ class ProductDataService implements SingletonInterface
             'maxDateEnd' => null,
             'minPrice' => null,
             'hotelCount' => 1,
-            'pseudoPrice' => $teaserData['pseudoPrice'],
-            'board' => $teaserData['board'],
-            'earlybird' => $teaserData['earlybird'],
-            'new' => $teaserData['new'],
-            'daytrip' => $teaserData['daytrip'],
-            'hideBookingButton' => $teaserData['hideBookingButton'],
-            'lowContingent' => $teaserData['lowContingent'],
-            'servicesIncluded' => unserialize($teaserData['servicesIncluded'], ['allowed_classes' => false]),
-            'season' => $teaserData['season'],
+            'pseudoPrice' => $teaserData['pseudoPrice'] ?? null,
+            'board' => $teaserData['board'] ?? null,
+            'earlybird' => $teaserData['earlybird'] ?? null,
+            'new' => $teaserData['new'] ?? null,
+            'daytrip' => $teaserData['daytrip'] ?? null,
+            'hideBookingButton' => $teaserData['hideBookingButton'] ?? null,
+            'lowContingent' => $teaserData['lowContingent'] ?? null,
+            'servicesIncluded' => unserialize((string)($teaserData['servicesIncluded'] ?? ''), ['allowed_classes' => false]),
+            'season' => $teaserData['season'] ?? null,
             'product' => [
-                'uid' => $teaserData['productUid'],
-                'name' => $teaserData['productName'],
-                'subline' => $teaserData['productSubline'],
-                'detailPage' => $teaserData['productDetailPage'],
-                'slug' => $teaserData['productSlug'],
-                'fact' => $teaserData['productFact'],
-                'feature' => $teaserData['productFeature'],
-                'teaser' => $teaserData['productTeaser'],
-                'images' => $this->productImageService->getImages($teaserData['productUid']),
+                'uid' => $teaserData['productUid'] ?? null,
+                'name' => $teaserData['productName'] ?? null,
+                'subline' => $teaserData['productSubline'] ?? null,
+                'detailPage' => $teaserData['productDetailPage'] ?? null,
+                'slug' => $teaserData['productSlug'] ?? null,
+                'fact' => $teaserData['productFact'] ?? null,
+                'feature' => $teaserData['productFeature'] ?? null,
+                'teaser' => $teaserData['productTeaser'] ?? null,
+                'images' => $this->productImageService->getImages($teaserData['productUid'] ?? null),
             ],
             'concept' => [
-                'uid' => $teaserData['conceptUid'],
-                'name' => $teaserData['conceptName'],
-                'code' => $teaserData['conceptCode'],
-                'popupText' => $teaserData['conceptPopupText'],
+                'uid' => $teaserData['conceptUid'] ?? null,
+                'name' => $teaserData['conceptName'] ?? null,
+                'code' => $teaserData['conceptCode'] ?? null,
+                'popupText' => $teaserData['conceptPopupText'] ?? null,
             ],
             'hotel' => [
-                'name' => $teaserData['hotelName'],
+                'name' => $teaserData['hotelName'] ?? null,
                 'category' => $hotelCategory,
-                'fact' => $teaserData['hotelFact'],
-                'uid' => $teaserData['hotelUid'],
-                'images' => $this->hotelImageService->getImages($teaserData['hotelUid']),
+                'fact' => $teaserData['hotelFact'] ?? null,
+                'uid' => $teaserData['hotelUid'] ?? null,
+                'images' => $this->hotelImageService->getImages($teaserData['hotelUid'] ?? null),
             ],
             'country' => [
-                'name' => $teaserData['countryName'],
-                'code' => $teaserData['countryCode'],
+                'name' => $teaserData['countryName'] ?? null,
+                'code' => $teaserData['countryCode'] ?? null,
             ],
             'region' => [
-                'name' => $teaserData['regionName'],
-                'fact' => $teaserData['regionFact'],
-                'feature' => $teaserData['regionFeature'],
+                'name' => $teaserData['regionName'] ?? null,
+                'fact' => $teaserData['regionFact'] ?? null,
+                'feature' => $teaserData['regionFeature'] ?? null,
             ],
             'dates' => [],
             'nights' => [],
diff --git a/packages/ep_theme/Classes/DataProcessing/ContextProcessor.php b/packages/ep_theme/Classes/DataProcessing/ContextProcessor.php
index 68d1ffa..ee58d4c 100644
--- a/packages/ep_theme/Classes/DataProcessing/ContextProcessor.php
+++ b/packages/ep_theme/Classes/DataProcessing/ContextProcessor.php
@@ -61,7 +61,7 @@ class ContextProcessor implements DataProcessorInterface
         if ($regionUid > 0) {
             $processedData['context']['region'] = $this->getContextRecord($regionUid, 'tx_epproducts_domain_model_region');
         }
-        if ($data['tx_eptheme_context_pacode']) {
+        if ($data['tx_eptheme_context_pacode'] ?? null) {
             $processedData['context']['paCode'] = $data['tx_eptheme_context_pacode'];
         } elseif ($paCode = $this->getPaCodeFromRequest()) {
             $processedData['context']['paCode'] = $paCode;
diff --git a/packages/ep_theme/Classes/ViewHelpers/Uri/ProductViewHelper.php b/packages/ep_theme/Classes/ViewHelpers/Uri/ProductViewHelper.php
index 027bddf..50dcba6 100644
--- a/packages/ep_theme/Classes/ViewHelpers/Uri/ProductViewHelper.php
+++ b/packages/ep_theme/Classes/ViewHelpers/Uri/ProductViewHelper.php
@@ -27,6 +27,12 @@ namespace EP\EpTheme\ViewHelpers\Uri;
  *  This copyright notice MUST APPEAR in all copies of the script!
  ***************************************************************/
 
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Mvc\ExtbaseRequestParameters;
+use TYPO3\CMS\Extbase\Mvc\Request;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
+use TYPO3\CMS\Extbase\Mvc\Web\Routing\UriBuilder;
 use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
 use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
@@ -73,10 +79,9 @@ class ProductViewHelper extends AbstractViewHelper
             ];
         }
         $targetPageUid = is_array($product) ? (int)$product['detailPage'] : $product->getDetailPage();
-        $uri = $this->renderingContext
-            ->getControllerContext()
-            ->getUriBuilder()
+        $uri = GeneralUtility::makeInstance(UriBuilder::class)
             ->reset()
+            ->setRequest($this->getExtbaseRequest())
             ->setTargetPageUid($targetPageUid)
             ->uriFor('detail', $linkArguments, 'Product', 'epproducts', 'product_detail')
         ;
@@ -89,4 +94,19 @@ class ProductViewHelper extends AbstractViewHelper
         return $uri;
     }
 
+    /**
+     * The view helper is also used in content elements, which render without an Extbase request
+     */
+    private function getExtbaseRequest(): RequestInterface
+    {
+        $request = $this->renderingContext->getAttribute(ServerRequestInterface::class);
+        if ($request instanceof RequestInterface) {
+            return $request;
+        }
+        if ($request->getAttribute('extbase') === null) {
+            $request = $request->withAttribute('extbase', new ExtbaseRequestParameters());
+        }
+        return new Request($request);
+    }
+
 }