W7. I was able to login during pve season i dont understand why now it makes this problem.
I don't see any information regarding your account on our realm for this session (did you manage to join the realm ? Do you have the right login / password ? - We changed all passwords between the 2 sessions).
Tried now with several modes and without them.
PvP Session worked just fine.
We detected cheats on our account, and that's why it has been suspended. Did you have any cheat on your computer - even if it is not enabled yet ? Were did you get your client ?