The license of any public dance hall or ballroom or academy may be forfeited or revoked by the district attorney, for disorderly or immoral conduct on the premises, or upon proof that the dance hall, ballroom or academy was frequented by disorderly or immoral persons, or for the violation of any of the laws of the United States of America, or this Commonwealth, or the rules, regulations, ordinances, and laws governing or applying to public dance halls, ballrooms or academies or public dances, or for permitting or tolerating the patrons thereat to violate such laws, ordinances, rules or regulations. If, at any time, the license of a public dance hall, ballroom or academy shall be forfeited or revoked, at least six months shall elapse before another license or permit shall be granted for dancing on the same premises.