Update app.py

app.py

@@ -142,7 +142,10 @@ claims_extracted = st.session_state.claims_extraction
 chunk_size = 350
 
 # Split the extracted claims into chunks
-chunks = [claims_extracted[i:i+chunk_size] for i in range(0, len(claims_extracted), chunk_size)]
+if isinstance(claims_extracted, str):
+    chunks = [claims_extracted[i:i+chunk_size] for i in range(0, len(claims_extracted), chunk_size)]
+else:
+    chunks = []
 
 # Process each chunk with the BERT-based model
 summaries = []