MINIMUM NUMBER OF CIVILIZATIONS IN GAME MUST BE 2!!!
DON'T DELETE [ran] AND [Age_of_Civilizations]!!!
1. Delete civilization tag name in [game\civilizations].
2. Open [Age_of_Civilizations] in [game\civilizations] with any text editor.
3. Find tag of civilization you delete and delete it.
Don't forget write [;] if it needed.
If you have hard with finding, use [Ctrl + F] and write civilization tag.