Update app.py

app.py

@@ -141,7 +141,7 @@ def main():
                 st.subheader("📌 Keyphrase Extraction and Summary of Reviews")
 
                 # Combine all comments into a single text
-                combined_text = " ".join(comment)
+                combined_text = " ".join(comments)
 
                 # Keyphrase extraction
                 with st.spinner("Extracting keyphrases..."):