Problem: Wix: "There's a technical problem on our end Please refresh the page and try again."

Hi - for the last two days I have been trying to add a new blog post...but keep getting this error message from Wix (see below). I have already made 200+ blog posts (Newsletters) since 2017...and this is the first time I am seeing this error message. Can the folks at Wix please look into this and fix the problem on your end? Thank You - Robert DeCandido PhD in NYC

"There's a technical problem on our end Please refresh the page and try again."