Unable to Post Listing on Etsy: Persistent Error

[Welcome2Vintage]

Since yesterday, I haven’t been able to post a listing or even save a draft. A red window pops up: There was a problem saving your changes. Contact Etsy Support and make sure to include this error code in your message: Error code: EuwNNF2ZNHc-WigAcWFnPFOg-4fa.

I contacted support, and they said everything was fine on their end. They suggested using a different browser and checking the accuracy of the fields. This didn’t help; the fields are filled out correctly, and the same issue occurs in another browser, but the error code changes. I've been using Mozilla for many years without any problems.

Now, customer support has stopped responding, and I don’t know what to do.

[AlleycatAttic]

I am having the same issue I came over here to see if others are as well I can't post any photos in my listings and it says error contact etsy support so  

[Welcome2Vintage]

Have you contacted them yet?

[LakeLadyCrafts]

I'm having the same problem with error codes and don't want to lose all my work putting together the listing. We really need a phone number to call for help!

[Welcome2Vintage]

You can contact their support team on computer. They told me everything is okay on their end. But it is obviously not!

[quiltpanelsforyou]

I just edited a listing by adding all new photos and video. It would not let me publish with the red error popup and to contact support. The listing at bottom if page said there was 1 unsaved photo. I saved them all. It still said it. Then I deleted the new video, and reloaded it. Then it let me publish the edits.