From the looks of it, the link for some of the races, as Darksilver stated, Body dev and Power Dev are making calls to blank cells.
I unlocked the sheet and copied some code into place from a race that worked. So that may be the quick and dirty of it.
Don, if you can fix this for good, WOOT
This is where we have been grabbing it.
http://www.ironcrown.com/ICEforums/index.php?action=tpmod;dl=item82