Unable to purchase anything ingame

I can’t purchase anything ingame! I have tried to get the purifier console or a skin bundle ingame, all I get is a blue modal dialog with a spinner that keeps me waiting and never shows anything at all!

Seriously, what is wrong?

EDIT

OK, I figured out. I had to update my system.

EDIT:
OK, I’m having the problem on Heroes Of The Storm as well! And on Windows!

Here’s a screenshot:
https:// photos.app.goo.gl /KJ2Bb1J6QBZr2jET9