Update app.py

app.py

@@ -18,7 +18,6 @@ data2 = {
     'Link' : ['https://www.google.fr', 'https://www.google.fr']
 }
 df = pd.DataFrame(data)
-topics = df['Topic'].unique()
 df2 = pd.DataFrame(data2)
 
 project = hopsworks.login(project="ServerlessIntroIris")
@@ -27,7 +26,7 @@ dataset1 = fs.get_feature_group(name="daily_topic_info").read()
 df = dataset1
 dataset2 = fs.get_feature_group(name="daily_document_info").read()
 df2 = dataset2
-
+topics = df['topic'].unique()
 def display_topics(topic):
     # Filter DataFrame based on the selected topic
     selected_data = df[df['topic'] == topic]