Anti-spam filters triggered.
If you are not a spammer, you are probably accidentially trying to use an URL that is listed in the spam file. Try editing your post to remove it. Sorry for any inconvenience.

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This message keeps bugging every user who like to insert his name while posting few pictures to the board. It is possible to just post pictures without name (Anonymous) and everything is just fine but as soon as they post with their names the script starts bugging.

I set "use constant SPAM_TRAP => 0;" but it doesnt seem to work.

Is there any Option to just switch off or fix this spam-filters?

I made a somewhat unpleasant patch to Wakaba and Kareha to follow links, due to a handful of really persistent spammers and the increasing popularity of using link-redirectors to get around the filters.
I'm not a Perl hacker and really this could probably have been written a lot more cleanly by someone who was, but it seems to work fairly well.
To get it working just add use constant LINKSPAM_FILES => ('linkspam.txt'); and use constant SPAM_FOLLOW_LINKS => 1; in config.pl. Then every link posted will be downloaded and matched against linkspam.txt just like how the comment itself is matched against spam.txt, and additionally, all of the redirected URLs are added to the comment. It's a really effective way to cut off the majority of spam links.

... and here's the Kareha patch, same as above