Google not indexing homepage

Site URL: https://www.leighsuggs.com/

Hey I'm wondering if this is an issue that I can fix within Squarespace?

I recently switched a client over from 7.0 to 7.1 and rebuilt her website with a few changes to the way it was organized and with a bunch of new content. We connected the old domain to the new site and canceled the old site. When I initially resubmitted the sitemap for the new site and requested indexing on all important pages, there was no issue and her ranking was excellent - showing up 1st in google search results. Now, her home page is not being indexed at all because of a soft 404 issue -- all other pages are being indexed with the exception of https://www.leighsuggs.com/ and https://www.leighsuggs.com/home -- both of which are active links as far as I can tell. And incidentally -- these are the most important pages to be indexed! 

I submitted a help request to google and their response was that the URL doesn't exist? Help. I've tried removing the home page as the page that people get directed to when there is a 404 message (to catch the old random links from her old site that may exist on various institutions websites) and that didn't help so I turned that back on. 

Anytime I request indexing within google search console it thinks for a little while and then says "Oops! something went wrong!" I've tried over and over again for the past week with no results. 

Attached is a screenshot of what it looks like within console. 

Anyone else run into this problem? Any advice would be greatly appreciated.  

Cami