Subnav menu items font color

Hi there! I have the free version of Rock Tune, and I've created the navigation menu, but the sub nav items are showing up as different colors. For example, if you go to 'media' the subnav items are all white, which is fine, but if you go to 'music' the subnav items are all dark so impossible to read until you hover over them. Please let me know how I can make the subnav items all the same color. Website is https://martinpage.com/launch   Thanks in advance!!