Error BLZBNTAGT00001389 when trying to update SC1

I’m getting the BLZBNTAGT00001389 “Whoops look like something broke. You can try restarting Battle.Net.” message. Of course restarting Battle.net, restarting the Mac, scanning/repairing SC1, doesn’t work. What to do?

Same story. MacOS 15.1.1

I just reinstalled the game and it helps.

I can confirm that reinstall helps!