Should another tenants in any within describe building do or ornit to do. Without the knowledge of the insured. Anything which would violent any Conditions and/or Warranties, this section will not be held to be void in that account provided that the Insured shall notify to the Company the happening or existence of such act or omission as soon as the same shall come to his or her knowledge and shall on reasonable demand pay the additional charged for any increase of hazard thereby created according to the established scale of rates. For the time such hazard may be, or shall have been, insured by the Company during the continuance of this insurance.