The City Clerk or Chief of Police may deny any application or may revoke or suspend for a period of not to exceed 30 days any license issued under this article, for any of the following causes:
(a) Fraud, misrepresentation or false statement contained in the application for license;
(b) Fraud, misrepresentation or false statement made in the course of carrying on the business;
(c) Any violation of this article;
(d) Conducting a business as defined in § 5-201 in an unlawful manner or in such a manner as to constitute a breach of the peace or to constitute a menace to the health, safety or general welfare of the city. Notice of the denial, revocation or suspension of a license shall be given in writing to the applicant or mailed to his or her last known address and the City Clerk shall set forth the grounds of such denial, revocation or suspension; and
(e) Conviction of the crime of theft, larceny, fraud, embezzlement or any felony within two years before the application date.