Upon notice from the clerk of the county court wherein such land so divided is situate, or upon notice from any person owning a lot or lots (or an undivided share or any interest therein) in any such tract or parcel of land so divided, to the owner or owners or his or their agent, that the plat or plan of subdivision has not been properly filed, the owner or owners, or his or their agent, shall cause the same to be properly filed for record within sixty days from such notification.