Site Timing Out/Crashing when Editing or Creating Blog Pages

Site URL: http://www.moneyconsciousmommy.com

I have been on squarespace since August 2021 and have experienced the site crashing and timing out whenever I am creating a new or editing an existing blog post. I reached out to Squarespace Support and they said there is an issue with the CSS code on my site, but would not tell me the issue. They only said it's out of the scope of that they can help with and to post on the forum. Can someone help me figure this out?