[NEED MORE INFO] Server error [unable to play the game whatsoever]

Platform, device and operation system
Samsung S10 5G

What were you expecting to happen, and what actually happened
I’m able to enter into the game and do things like upgrade equipment, open chests, upgrade followers. However, whenever I try to get into the gameplay/gem matching, I get a server error (e.g. “Server Error: RE-ALG7DD7S”, though the letters after the “Server Error: RE-” prefix continually change). This seems to affect all gameplay modes (dungeons, skirmishes, PVP, social). It is 100% consistent, and I am never able to progress to a gem board.

How often does this happen? When did it begin happening?
As above, this is a consistent issue for all gameplay modes.

Is this still occuring? What OS are you on? And what region are you playing in?