fixed output df

app.py

@@ -337,7 +337,9 @@ def dataframeProcessing(dataset):
         print('Topic ', i)
         print(rep_tweets[:5])
     
-    return df
+    output_df = df[['original_tweets', 'max_topic']].copy()
+    
+    return output_df
 
 def greet(name):
     return "Hello " + name + "!!"