Update app.py

app.py

@@ -353,7 +353,9 @@ if uploaded_file is not None:
                 value=30,
                 help="Minimum number of documents required to form a topic"
             )
-
+    except Exception as e:
+        st.error(f"Error loading models: {str(e)}")
+        st.stop()
 if st.button("Process Data"):
             with st.spinner("Processing your data..."):
                 summaries, topic_model = process_and_summarize(df, top_n=top_n, topic_strategy=topic_strategy, n_topics=n_topics, min_topic_size=min_topic_size)