Update app.py

app.py

@@ -10,7 +10,7 @@ def keep_alive():
         predict_loan_status(10000, 10, 600, 250, 5000)
         return "ok"
     except Exception as e:
-        return f"error: {str(e)}"
+        return "error:", str(e)
         
 def predict_loan_status(
         loan_original_amount,