Can you post a screenshot of the red warning? I think you were permabanned, but I am not sure at 100%. As shorena said, you were banned mosst probable for the content of your posts and you should improve your quality. Now I suggest you to don't evade the ban and not post outside the meta section.
Oh, This is the first time I know how to post a picture here. Thanks for all you here !
Really strange, there isn't an email either a "period" so I can't say if it is a perma or limited ban. You should wait an admin, because we can't help you much here.