Magic Plugin Not Updating

[Kharn the Betrayer]

I haven't been able to update my MtG plugin for some time. My internet connection is fine, I can open the document in my browser but the automatic update in Lackey won't work on startup and I can't update from the plugins tab either. I installed a fresh instance of Lackey, tried to install and got the same error. Can someone help?

[Rain]

That auto-update URL is no longer active. Here are the new ones:

for high:
http://www.normalitycomics.com/magicplugin/high/updatelist.txt

for medium:
http://www.normalitycomics.com/magicplugin/medium/updatelist.txt