Enps — Registration against this Acknowledgement Id 11578770 is pending for confirmation from payment Gateway.

I had filled all the details but due to non-availability of otp my payment was not able to go through and I am getting the following error:

Registration against this Acknowledgement Id is pending for confirmation from payment Gateway.Please try again after sometime.

I have tried several times but not able to go through the error window.

Acknowledgement id: 11578770
Acknowledgement date:15/06/2021