Enps — Registration against this Acknowledgement Id 11405985 is pending for confirmation from payment Gateway

I had filled all the details but due to some payment limit at my bank side 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: 11405985