Exclamation Point in Battlegrounds Shop

The Hearthstone Battlegrounds ingame shop permanently shows an exclamation point that can not be resolved. The Battlegrounds section has an exclamation point as if there was a new item in there, and when I click on it, it shows literally no items whatsoever.

The fact that the shop shows an item that I haven’t seen must mean that it’s literally invisible, or what?

No matter what I do, even re-installing the whole game, still results in the same thing.
I also posted a screenshot to the @PlayHearthstone team on Twitter, and I didn’t get any reaction.

Although I think that your prices are absolutely ridiculous, and until two weeks ago, the Fortnite Battle Royale ingame Store literally had the same issue, it’s really annoying. You expect something fun and new, only to realize that it’s still the same bug as it’s been for literal months now.