Everyone else seems to be fine with logging into their accounts, seeing 512 players are online right now, but when I log in it says my account is already logged in, or server is under inspection. Pretty sure server is not under inspection because of the amount of players already logged in. :[
I have the exact same problem, I've been having it since yesterday evening the last time I dced during the instability. Normally this would would only be a temporary thing, but seeing as it is still here after a nights sleep, it doesn't seem to be. I created a new account to see if servers were online (which they are, since this account can log on just fine) and to see if maybe I was hacked or something, but the one character I had on the account isn't online either...
If you log into the home website of Mapleroyals, there should be a panel called "character fix", that should get rid of "already logged in" problem