Error while creating delivery for STO using VL10G or VL10B

Hi all,

I am working on stock transport order scenario & stuck because of a problem:

The purchase order has been created using transaction code ME21N & saved. Now when i go to transaction code VL10B or VL10G to create a delivery i get an error when i click on the "background" button. The error is as follows:

Errors occurred while processing output

Message no. VN073

Please suggest me where the problem lies & what do i do in order to eliminate thia problem.

Thans in advance.

Regards,

Allabaqsh G. Patil