You could download the fix to get rid of that bug, or just delete the kart-hadast reform part of the script like I did (After a half dozen of those buildings appeared).

As for Greek names, when you conquer a province you get the trait describing the region. That trait usually has the name of the province in that text. If the guy who conquered the region you are interested in is dead, you could try looking up the trait description in the "...EB/Data/text/" folder (I forget the name of the trait description file).