As the "closing link" message shows, you get
k-lined everytime you connect to the network. "Spammer (v5a)" might indicate the reson for the k-line, although the ban may as well be a misfire, "false positive" or the like.
In any case, we can do nothing about this ban. You have to contact the operators of the network to get an explanation and/or have the k-line removed (some forum / contact form you'll find on the network's homepage).