My question involves employment and labor law for the state of: Kansas

I left my previous employer to work for another company in the same field. I had a non compete with my previous employer. I had to take a pay cut from my previous employer and felt that would not be an issue since I have to take care of my family. A employee of my previous company wants to proceed that I broke the non compete by calling on some of his customers and it was taking commission money from him and he would not able to support his family. Should I be concerned?