Same here..there was this guy trying to trade items with me. then he told me that my game is bugged so i tried to change char but my char was not appearing.so i quit and tried to login again. then I got some messages like what was posted and some disconnect errors.
I was afraid that my account might have been compromised.
now for my final test. I'm trying to inspect that all my files are ok.
If it works I would let u guys know.