Update app.py

app.py

@@ -53,7 +53,7 @@ if uploaded_file:
 
     modified_time = datetime.now().isoformat()
     collection = db['final_chunks']
-    already = final_col.find_one({
+    already = collection.find_one({
         "metadata.title": uploaded_file.name,
         "collection_category": selected_category
     })