Can't buy perks in BG

I can’t buy the perks while in BG. The button in clickable but nothing happens. Why is this?

I believe you need to buy the “pass” in the shop, and that gives you access to the perks (and some Arena tickets too). So I do not think you buy from the Battlegrounds itself.

…and the shop is closed.

This affects many players, you can add your voice by posting in the thread I am linking now, providing the information requested: