Update app.py

app.py

@@ -85,7 +85,7 @@ def generate_questions(article,num_que):
         save_data_and_sendmail(article,generated_questions,num_que,result)
         return result
     except Exception as e:
-        return "Error while generating question -->" + e
+        return "Error while generating question -->" + str(e)
 """
 Save generated details
 """
@@ -115,7 +115,7 @@ def save_data_and_sendmail(article,generated_questions,num_que,result):
         #     json.dump(data, file)
         #     commit_url = repo.push_to_hub()
     except Exception as e:
-        return "Error while sending mail" + e
+        return "Error while sending mail" + str(e)
         
     return "Successfully save data"