Likely you accidentally "changed a protocol" on your device. I use cell phone, others may use tablet/lap or desk top.

Most likely problems with opening hyperlinks are connected with either the security restrictions of your Internet browser, or with your Flash player plug-in that prevents you from opening URLs in local Flash files.

Take phone to your local store or go to a library that has digital assistance and they will debug at no charge by correcting protocol that did allow PP entry.

Links are not broken at all.  I just tested a sampling of 10 of them and all work.

Not sure if Dogs' suggestions will work but I would recommend trying any of 1-different browser 2-different computer (i.e. not a phone or tablet) 

Given the links do work. And akill can't access presently; now..but could until recently:

2/5 the protocol that did work to activate akill's hot link present protocol were changed on whatever device is used. Could even be a preference setting change not allowing access.

No issue here with the available links. Some can't be accessed but for the most part i can get info i need. Using a laptop. Somewhat harder with a smartphone to access.