GST Registration - PAN Date Error

Dear All, I am registering for a partnership firm and allotted a pan a few days ago. However when I try to register for the GST for financial purposes. In the first page itself, an error under Date of PAN - Pan date is not available, I have successfully registered with PAN - NSDL & INCOME TAX PORTAL, HOWEVER THERE'S NO POSSIBILITY TO RECTIFY THE SAME. I HUMBLY SEEK THE HELP OF YOU PROFESSIONALS THANKS IN ADVANCE