diff --git a/frontend/src/pages/ProcessingPage.jsx b/frontend/src/pages/ProcessingPage.jsx
index 1050091..1dfbde6 100644
--- a/frontend/src/pages/ProcessingPage.jsx
+++ b/frontend/src/pages/ProcessingPage.jsx
@@ -88,7 +88,8 @@ const ProcessingPage = () => {
 
     useEffect(() => {
         const intervalIds = Object.entries(tasks).map(([key, task]) => {
-            if (task && (task.state === 'PENDING' || task.state === 'PROGRESS')) {
+            // FIX: Ensure the task and its status_url exist before starting to poll
+            if (task && task.status_url && (task.state === 'PENDING' || task.state === 'PROGRESS')) {
                 const intervalId = setInterval(async () => {
                     try {
                         const updatedTask = await pollTaskStatus(task.status_url);