diff --git a/Classes/Hooks/ItemsProcFunc.php b/Classes/Hooks/ItemsProcFunc.php
index 72c27151d2..ca4e41ae26 100644
--- a/Classes/Hooks/ItemsProcFunc.php
+++ b/Classes/Hooks/ItemsProcFunc.php
@@ -41,7 +41,10 @@ public function user_templateLayout(array &$config): void
     {
         $pageId = 0;
 
-        $currentColPos = $config['flexParentDatabaseRow']['colPos'];
+        $currentColPos = $config['flexParentDatabaseRow']['colPos'] ?? null;
+        if ($currentColPos === null) {
+            return;
+        }
         $pageId = $this->getPageId($config['flexParentDatabaseRow']['pid']);
 
         if ($pageId > 0) {