diff --git a/Classes/Finisher/SaveToDatabaseFinisher.php b/Classes/Finisher/SaveToDatabaseFinisher.php
index efe20fa..b9c8773 100644
--- a/Classes/Finisher/SaveToDatabaseFinisher.php
+++ b/Classes/Finisher/SaveToDatabaseFinisher.php
@@ -186,11 +186,11 @@ protected function saveToDatabase(
      * @param array $elementsConfiguration
      * @param string $elementIdentifier
      * @param string $prefix
-     * @return array
+     * @return bool
      */
     private function canValueBeHandled(mixed $elementValue, array $elementsConfiguration, string $elementIdentifier, string $prefix): bool
     {
-        $elementConfig = $elementsConfiguration[$elementIdentifier];
+        $elementConfig = $elementsConfiguration[$elementIdentifier] ?? null;
         if (!isset($elementConfig)) {
             return false;
         }