Unable to connect to marketplace

For almost half a year I have a problem connecting and using marketplace on my iOS device. I'm sure it's not a device problem, cause it's iPhone 11 Pro 256gb. It doesn't matter if I use cellular data or WiFi at home (up to 1Gbit). That's just ridiculous that I can't spend coins I bought or redeem free items you can get each season. It's really frustrating.

I have no problem playing local coop (on home WiFi) or join multiplayer. Everything works fine except for marketplace. It's in unusable state for me.