404. That’s an error.
The requested URL /bookmarks/mark?op=add&bkmk=https%3A%2F%2Fwww.pro-linux.de%2Fsicherheit%2F3%2F2010060012%2Fsicherheitsmeldungen-f%C3%BCr-juni-2010.html&title=Sicherheitsmeldungen+f%C3%BCr++Juni+2010+-+Security+-+Pro-Linux
was not found on this server. That’s all we know.