Any license issued by the city to any person, firm, association or corporation to engage in, exercise or pursue any business, profession, trade, occupation or privilege may be revoked by the city council, after adequate opportunity for a hearing, for any of the following causes: a) that the licensee is engaging in, exercising or pursuing the business, profession, trade, occupation or privilege in such a manner that he has created or is creating a public nuisance as defined by 50 Oklahoma Statutes sections 1 and 2; b) serious or repeated violation of the law or ordinances; c) any other cause prescribed by law or ordinance. (1986 Code § 5-4)