Hi Mate.,
The problem is with your home page contents. There has been a collapse with row contents in your home page and many contents are placed correctly in it and hence the frontend editor shows that row shortcode while editing. We now added our demo site home page content in a test page https://www.leonasheartcompass.com/test-3/ and tried to edit it with Frontend editor and it is working fine. So take this test page as a base page and try to build your home page with your contents and have a look.