State tax filing

I am still having problems with my Va  state corporate tax return.  Even after I delete the 502A form, the 502 form says it's not completed, and a review creates another Form 502A.

 

I don't know why the Va form wants to apportion or allocate my income.  What is triggering this entry for the Form 502m Line 6 and 7?

This is really getting frustrating.