Update app.py

app.py

@@ -464,6 +464,9 @@ def main():
             if 'recurrence' not in df.columns:
                 df['recurrence'] = [{} for _ in range(len(df))]
             
+            # Convert NaN values to empty dictionaries
+            df['recurrence'] = df['recurrence'].apply(lambda x: x if isinstance(x, dict) else {})
+            
             # Filters
             col1, col2, col3 = st.columns(3)
             with col1:
@@ -517,17 +520,18 @@ def main():
                             """, unsafe_allow_html=True)
                             
                             # Recurrence Details
-                            if row['recurrence'].get('type') != "None":
+                            recurrence = row.get('recurrence', {})  # Safely get recurrence
+                            if recurrence.get('type') != "None":
                                 with st.expander("🔁 Recurrence Details"):
-                                    st.write(f"**Type:** {row['recurrence']['type']}")
-                                    st.write(f"**Start Date:** {row['recurrence']['original_date']}")
-                                    if row['recurrence'].get('end_date'):
-                                        st.write(f"**End Date:** {row['recurrence']['end_date']}")
+                                    st.write(f"**Type:** {recurrence['type']}")
+                                    st.write(f"**Start Date:** {recurrence['original_date']}")
+                                    if recurrence.get('end_date'):
+                                        st.write(f"**End Date:** {recurrence['end_date']}")
                                     else:
-                                        st.write(f"**Occurrences:** {row['recurrence']['num_occurrences']}")
+                                        st.write(f"**Occurrences:** {recurrence.get('num_occurrences', 'N/A')}")
                             
                             # Attachments
-                            attachments = row['attachments']
+                            attachments = row.get('attachments', [])  # Safely get attachments
                             if attachments:
                                 with st.expander(f"📎 Attachments ({len(attachments)})"):
                                     for att in attachments: