Buying troop for glory gives server connection error [RESOLVED]

Update: issue fixed itself with new week event.

Platform, device version and operating system
Android, Xiaomi MI5

Screenshot or image
not available

What you were expecting to happen, and what actually happened
When I try to buy troop for glory (shop > glory rewards > Owl Rider), I got error “There was a problem when trying to contact the server. Please wait a few minutes and restart your game”.
I expect to buy troop. Buying “Spoils of war” for glory works well. I have enough glory to buy troop.

How often does this happen? When did it begin happening?
It happens every time, it started on wednesday(28 Mar) or Tuesday (27 Mar).

Steps to make it happen again
Go to shop, buy troop for glory.

It may be connected, a couple times I bought about 10 troops in row(for glory), 1-2 operations ended in buying only souls, but it took normal amount of glory (300 or 400) as buying troop. And I clicked correct button for buying troop.

Thanks for the report even though this is now fixed for you. If it happens again please try completely closing and restarting your device and opening it again, if that doesn’t help reach out to technical support with a ticket as 'Technical Issue’. A connection error can be caused for a number of reasons so it’s difficult to say what it was.