Block Editor Won’t Load for Home Page

I can edit any page on my site except the home page.

After clicking “EDIT,” the page simply loads and displays all white with the raw URL in the tab page title rather than “Edit Post.” If I sit around long enough refreshing https://parklore.com/wp-admin/post.php?post=2&action=edit, eventually it’ll “break through” and I’ll get to the editor, but in the very rare instance where I get to the editor and make the change I want, I get a bad JSON response when trying to save, the Update button grays out, and reloading the page starts me back over at square one.

I have tried different browsers, clearing cache & cookies, changing the “home” page to another page, literally everything. Plugging any other post=__ into the URL brings up the editor just fine, but for “post=2” (my home page) something gets stuck.

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