What did I mess up?

[Slick]

I haven't played a stock game in a while, but recently when I tried I get an error window after hitting "begin game". It lists :

AI Settings Errors: c:\program files\shrapnel games\malfador machinations\space empires iv

• Could not find field "Ships don't move through minefields" in record "settings"
• Could not find field "Ships don't move through restricted systems" in record "settings"
• Could not find field "Clear orders on encounter enemy" in record "settings"
  
  ... there are several others similar (10 total bullets)

The game then loads and appears to work, but I didn't play more than a couple of turns.

What did I do wrong and how do I fix it?

Slick