I'm using Logistic Regression to predict the majors of new university students (classify them). The data of existing students has 3 majors (classes): Science, Business, and Arts. The variables used for prediction are: Origin_City, HighSchool MathGrade, HighSchool_SocialScienceGrade, and HighSchool GPA. I keep getting error messages whenever I try to train the model. What is the most probable reason of the errors?

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