I just fixed this problem on Galaxy A70 by just reinstalling the game although when I logged in I got a message with something like "We tried to log you in but something went wrong" but I don't see any issues at least for now.
Edit: Ok, spoke too soon - I relaunched the app and I got logged off and I am getting now error -9
Rafał Skurski
MC-248586
I just fixed this problem on Galaxy A70 by just reinstalling the game although when I logged in I got a message with something like "We tried to log you in but something went wrong" but I don't see any issues at least for now.
Edit: Ok, spoke too soon - I relaunched the app and I got logged off and I am getting now error -9