Hi Sudharshan,
You are using ORDERS 96A, Subversion EAN008. The EANCOM which SAP ships contains ORDERS 96A with both subversion EAN008, EAN009.
Once you import this successfully then the scenario should execute. Your EDI Separator sender channel should be selected for EANCOM. Your scenario association should be correctly defined. Please try to convert your payload from the B2B Integration cockpit UI. EANCOM-XML conversion. If the conversion works fine there then it should be able to convert in the actual scenario.
Also, you have mentioned that you deleted EANCOM from the EDI Content manager. My guess is that the all the entries were not deleted from the tables.
My suggestion is to import the EANCOM content and then proceed. You can share the payload and the configuration scenario along with the scenario association UI if you are still not able to proceed.
Best Regards,
Ruchir