update

backend/src/services/vikunja.service.ts

@@ -93,7 +93,7 @@ async function getOverdueTasks(): Promise<VikunjaTask[]> {
   const tasks = await getMyTasks();
   const now = new Date();
   return tasks.filter((t) => {
-    if (!t.due_date) return false;
+    if (!t.due_date || t.due_date.startsWith('0001-')) return false;
     return new Date(t.due_date) < now;
   });
 }