Can’t Find Page

I have website that’s been working fine until recently. Now, most of the time I can’t access my Home page from Dashboard/Pages/All Pages/Home. I get a Can’t Find Page notice. I can get to the page if I’m logged out. I can also get to it through my Site Origin Pagebuilder. SiteOrigin thinks it’s some kind of WP bug. All help appreciated.

The page I need help with: [log in to see the link]