Sorry for the late reply. I didn't notice the post.
Under Configure | teams, verify that Culver-Stockton has a team code. It should be 329.
But since you are aware that you can look up the codes, iIt might be something else. Look for a duplciate Culver-Stockton. (check show disabled teams). If there is a duplicate, we need to get rid of it. Try deleteing one of the teams.