Squarespace Presets & other DNS Settings issues

I initially needed to add DNS settings for my CRM software to improve my deliverability, but I received errors each time I attempted to add or edit a DNS setting, stating there was a conflict. (Though I was able to delete my old Squarespace email settings, I was unable to edit anything else.)

That is, until I deleted the Squarespace presets as everything online mentioned that it was easy to add back. 

So the Squarespace presets were deleted but now I can't add them back without receiving an error, so my site is down! This was a huge huge huge error on my part, taking this chance. Here is the error message:

Quote

"Squarespace defaults couldn’t be added. We were unable to add these records. Try again later. If this problem continues, contact Customer Support."

I'm not unfamiliar with managing DNS settings, but something larger appears to be wrong here. My domains live with Squarespace and therefore should not be part of the issues surrounding the Google Domain acquisition. I have tried on multiple browsers and platforms, cleared cache, etc etc.

I have tried manually adding the Squarespace presets, but again, I get an error. 

Quote

"Custom record not saved. We were unable to save this record because it conflicts with an existing record."

But there are no other CNAME records in the DNS settings.

I have emailed support as live chat was unavailable due to volume. Going on 24 hours now with no response.

This is my business website and is a primary source of scheduling for our services, so I am feeling desperate. I have two other domains hosted in Squarespace that point to the primary domain. Is it worth making one of those domains my primary, updating page links and point the original primary domain to the new one as a temporary fix?

Would love some help. Thank you!

same problem here. I've been waiting for almost a week from squarespace support. Meanwhile I'm loosing customers and my site its scaring away clients with saying its unsecure.