Can't get rid of Store page heading title

Site URL: https://www.collectorscornerny.com/

Hi I cannot figure out why the "Watches" heading (see arrow marked in screenshot below) has now appeared at the top of our store page. I have looked in page settings + design and not find any way to get rid of this. We do NOT want this on the top of this page.

Please help and advise how i can get rid of this copy!

Following - want to reduce the space above the header! 

Add to Home > Design > Custom CSS

.nested-category-title {
    display: none !important;
}