Problem with uploading with digital

Shubham (Student) (46 Points)

28 July 2011  

While signing with the USB token I get the following error:

Cannot read the keystore from the USB token

-The Usb Token.reader in not connected.

-The Usb token is not inserted

-The PIN for the smart card is incorrect

Problem details:Could not find the certificate with which you registered

Please somebody post the remedy for this problem as the due date is fast approaching..