DTW Draft AR Invoice document error

Hi Expert,

While import Draft AR Invoice document DTW showing error as "To generate this document, first define the numbering series in the Administration module To generate this document, first define the numbering series in the Administration module65171"

I am using super user id to import the document but still it's coming.

Can you please help me to resolve this.

Find attached .txt file FYI.

drf1.txtodrf.txt

Regards

Krishna Varma