not able to post on 4chan's imageboards

Ok, after a weekend of not using my computer due to playing Real Life MMO(tm) I come back to 4chan and whenever I try to reply to a thread I get "Error: Abnormal reply.".

I normally use Opera but I also tried IE and Firefox and both give me the same error.

>>1
Germany (T-Home) is restricted from posting for reasons that go behind my knowledge. Just use proxies for the time being.
Or does this count as violation of global rule #9? No idea, but I don't think so.