http://www.project1999.org/forums/sh...ad.php?t=94718
So this was one of the many issues I had with my error 1018 plagued account.
I had a guide move my character to a different zone, thinking it was related to the zone file. That did not resolve my issue. After a few days of not being able to log into my character, I had a friend log into my account, and the character loaded. This was a strong clue the problem was on my end.
I re-installed the game, and was able to log into my character.
note: I continued to have error 1018 issues which eventually caused me to dump that account and start new.
My first suggestion would be to re-install. With luck, it may be a permanent solution.