Nsdl E-Governance Infrastructure — NPS login using PRAN for First time

Website:

cra-nsdl.com/CRA

I have newly registered with e-nps and allotted with PRAN :[protected] . I have also completed e-sign verification with aadhar. Registeration fee is deducted and I received text my PAN is approved
But when i try to login to website with PRAN to set my i-pin for the first time i am getting the error - unauthorized user. Kindly request you to help