update app.py

app.py

@@ -65,7 +65,7 @@ stopword = stopword + context # add some frequent words in the documents
 clean_text = df_clean['description'].apply(lambda x: clean_up1(x, stopword, pos))
 docs = clean_text.apply(lambda x: " ".join(x)).tolist()
 
-topic_model = BERTopic.load("bertopic")
+topic_model = BERTopic.load("bertopic.pkl")
 
 with open('topics', 'rb') as f:
     topics = pickle.load(f)