It looks like Optimum is powering that via the McAfee interface. The drop-down menu in the left picture, is there an option there not to show it again?
BTW generally there is no option to stop ads unless given that option at the time the ad appears, however, as Optimum is a company I'm not familiar with their rules may be different.
Moved to Consumer > General as a better spot.
With products provided by the ISPs, the rules about adverts are defined by them - not by McAfee, so if there's no "don't show me this again" in the dropdown then there's no way to opt out of their advertising (with their ?free? version anyway).