Problems with Square Up - Anyone Else? (ETA: got it fixed, this time)

WHAT THE HELL? I don't know, 
and nobody at Square knows either. smh

UGH so frustrating. I spent all day Sunday photographing pots, then Sunday evening I started to list them in my online retail shop, hosted by Square Up. Technically I guess it's hosted by Weebly? I don't know what the exact relationship is there - I just know that some of the things I need to do to sell online happen at Square Up, and then for something I get transferred to Weebly. Not this particular problem - this one is new - but I have had a lot more problems with Square Up since they partnered with Weebly. It got super complicated just to list stuff & now items are not even available for sale when I do list them! 

After trying everything I know how to do, I reached out to their support team - no answer yet - and on social media - the folks there suggested a few things but ultimately were unable to fix the problem. I have been using Square for years but I am thisclose to just deleting the whole page & going back to building my own listings on my website, with Paypal Buy Now buttons. Each one is a little more work but at least I know they will work. 

There are other options, too - Wix, Squarespace (which is a different company from Square), Amazon Handmade , even Etsy 😬- but honestly I don't know if I want to make a big change just to be in a position again where someone else controls whether I can sell items or not. 

(What I would really like is a Square Basic option: just list items with photo, description, price, and how many you have. It's available until someone buys it, then it's not. Easy-peasy. All that other shit just makes it complicated & creates more things to go wrong.)

Anyway, has anyone else had this problem? More to the point, does anyone out there know how to fix this problem? 

ETA: I finally got on the phone with Square Support. Via email they suck & had not gotten back to me within their 48 hour promised window, but on the phone the hold time was short, and though I did have to talk to 2 separate people to get it solved, it did get solved. (Whoever responds for Square via social media tried hard to help also but they couldn't figure it out.) The problem was a new setting under fulfillments that Square (or Weebly? who knows) now requires the user to set. I don't know how I was supposed to know about this setting that I have never had to deal with on any listing before, especially since the first 2 people I talked to at Square did not know about it either. So, on the plus side, at least it's fixed. On the down side, Square, that is some really crappy service. 
Also, Square? quit adding shit & changing shit. Just when I get it figured out you change some random thing & I'm back where I started.