Hey Christian, have you taken a look at our Help Center for info on common reasons for account being disabled: https://goo.gl/iE4pKn ? Also, we noticed that you shared your email address publicly and since emails are often considered private info we recommend deleting the tweet.
Thanks for the info. I already took a look at that. Could you please give me a second chance? I have not received any Warning before the deactivation as far as I know