Hi,
What kind of info pack you triggered?
After the enhancement you deleted your data source form RSA7? if yes then its wrong step.
if we delete data source at RSA7, it just deleta data source only not the delta pointer.
If need to re init for existing delta, first we need to delete the init.
How to delete init:
Go to your info pack, Menu Scheduler-->initialization options for source system--> here you see your init, select that init and delete it. this automatically delete your data source from RSA7(Source side).
Later you can init with data or without data as per your needs.
Thanks