Problem after adding races

[mango]

I am new to the board and to SEIV Gold. I have what will most likely be an easy question. I have added some additional races to SEIV that I downloaded from various SEIV sites. When I went to start a new game, the program freezes after I hit the Begin Game button. I get an error box that says Ai Settings Errors and lists 10 specific problem areas like Could not find field "Ships don't move through minefields" in record "Settings". I am not running a mod and I did not change any files. I only added files for new races to the empire and race folders. Would just adding additional races cause this problem? Do you have to be running a mod to utilize new races? Thanks for any help.