Po6o4 error What is the procedure to delete this code with autoCal V2

I loaded new tune files in the ECM & TCM (E38,T43) 2010 Corvette C6 A6 no mods. Since the files were loaded Check engine light appears with code P0604. I
have tried full reflash of new tune files and delete error code using AutoCal with no success. Can anyone tell me the proper procedure to eliminate the error?
Is it safe to drive with this code error. Car seems to run fine. E-mailed tuner been 9 days no reply.

The tuner has contacted me and resolved the issue.