Hi,
Open the original DTP and click on change.
1) In Update you will find "create error DTP", just click on it system automatically create error DTP for you original DTP.
2) Do not change any thing, just come back to your original DTP and activate your DTP again.
Now come back and refresh the info provider tree.
now execute your DTP, request will be green in target and you will error records in error stack.
How to edit the error records in error DTP
please find the doc.
Thanks,
Phani.