Transport request with ended short dump in SAP BW

Hi Experts,

I am facing Transport request issue in BW Production since from 1week.

When I am import the request from Quality to production.it is going to ended as RC=12... In ST22 it is showing like " Access using a ZERO object reference is not possible".

Kindly please let me know how to solve this issue in BW production.

Thanks,

Venkat