I’m here to say that I also have the same error (@dicID$ETC20150918014643$^) with others, for more than 3 hours already . I was able to create a character in the 1st server (Laima) and log into the game, before the 2nd server was setup. I was able to move and attack. Was not able to get past through the tutorial (Only until right after the 1st NPC that talks to you.) before disconnecting.
After that, I was able to log-in again and select my character in the lobby BUT as some others has also pointed out, my character randomly walks inside the lobby after I tried directing it using the mouse (I tried the mouse control before I was disconnected, by the way). Then after that, the error everyone was talking about (@dicID$ETC20150918014643$^) appeared.
Now, most of the time I try to log-in, whatever server is selected, I get the error. When selecting the 3rd server, Gabija, I was able to get inside the lobby screen but with nothing in it but the same error. Sometimes, I was also able to enter the 1st server into the lobby screen, with the same error (pictured below). Noticeably, apparently the UI was not able to finish its animation when the error appeared. Gotta post here later if I was somehow able to log-in successfully.