use header key rather than hardcoded number for error checking
use header key rather than hardcoded number for error checking

AnidesBill/objectiveresource,yfactorial/objectiveresource,AnidesBill/objectiveresource,yfactorial/objectiveresource,AnidesBill/objectiveresource,AnidesBill/objectiveresource,yfactorial/objectiveresource,yfactorial/objectiveresource