diff --git a/Classes/Controller/FormEntryController.php b/Classes/Controller/FormEntryController.php
index 37dd5e1..95b8af3 100644
--- a/Classes/Controller/FormEntryController.php
+++ b/Classes/Controller/FormEntryController.php
@@ -286,8 +286,8 @@ public function exportAction(\Frappant\FrpFormAnswers\Domain\Model\FormEntryDema
             $this->redirect('list');
         }
 
-        $extensionConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['frp_formanswers'];
-        $exportData = $this->dataExporter->getExport($formEntries, $formEntryDemand, $extensionConfiguration['useSubmitUid']['value']);
+        $extensionConfiguration = $GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['frp_formanswers'] ?? null;
+        $exportData = $this->dataExporter->getExport($formEntries, $formEntryDemand, $extensionConfiguration['useSubmitUid']['value'] ?? false);
 
         $this->formEntryRepository->setFormsToExported($formEntries);
 
diff --git a/Classes/Utility/FormAnswersUtility.php b/Classes/Utility/FormAnswersUtility.php
index a48b6ab..858f057 100644
--- a/Classes/Utility/FormAnswersUtility.php
+++ b/Classes/Utility/FormAnswersUtility.php
@@ -44,14 +44,14 @@ public function prepareFormAnswersArray()
         // Get all Pids with a formEntry list
         foreach ($startPointPids as $pageId) {
             foreach ($this->formEntryRepository->findAllInPidAndRootline($pageId) as $formEntry) {
-                if($pageIds[$formEntry->getPid()][$formEntry->getForm()]['tot']) {
+                if(isset($pageIds[$formEntry->getPid()][$formEntry->getForm()]['tot'])) {
                     $pageIds[$formEntry->getPid()][$formEntry->getForm()]['tot'] += 1;
                 } else {
                     $pageIds[$formEntry->getPid()][$formEntry->getForm()]['tot'] = 1;
                 }
 
                 if (!$formEntry->isExported()) {
-                    if($pageIds[$formEntry->getPid()][$formEntry->getForm()]['new']) {
+                    if(isset($pageIds[$formEntry->getPid()][$formEntry->getForm()]['new'])) {
                         $pageIds[$formEntry->getPid()][$formEntry->getForm()]['new'] += 1;
                     } else {
                         $pageIds[$formEntry->getPid()][$formEntry->getForm()]['new'] = 1;
diff --git a/ext_emconf.php b/ext_emconf.php
index d382f88..0b3edfb 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -21,7 +21,7 @@
     'uploadfolder' => '0',
     'createDirs' => '',
     'clearCacheOnLoad' => 0,
-    'version' => '4.0.3',
+    'version' => '4.1.0',
     'constraints' => [
         'depends' => [
             'typo3' => '11.3.0-11.5.99',