I was the banning admin yesterday. We all agree that nobody laughed about your "joke" and that racism is not a topic to joke about.
Since your other chat logs are not conspicuous, I have unbanned you. Continue to have fun on our server but definitely keep an eye on your fingers, this is your only second chance here. We want this place to be enjoyable for everyone.
You may want to consider to rename your Origin account too. If others report that for being offending you may get banned again. This name is definitely none I would want to present myself with in the online world.