NPS — NPS - PRAN not found in database

Hi.
I have created a NPS account of tier - 1 type. And pran is also generated. But while setting ipin or while login, i am getting error as pran not found in database.

Could you please help me with this. As i'm not able to access, or even check the contribution made for this pran.

Also, I am not receiving any OTP by e-mail for completing Registration Process. Please help.