White bar appears on mobile over titles

I have a white bar appearing over the titles of my Featured Items on the Home Page and also across my Blog Page Title on the blog page when viewing the site on a mobile device in portrait mode. The white bar goes away when viewing in horizontal mode.
Can you please tell me how to get rid of this white bar being overlayed on the titles?

https://www.centralcoastcounsellor.com.au

Currently in coming soon mode