Weird, neither download portal is working for me. Mediafire is just opening then immediately closing a new tab and Google Drive is saying "nah too much traffic fam"
There was another report of Mediafire not working. It has worked for me every time I have tried. My guess is Mediafire has trouble in some parts of the world.
Google Drive should work if you try again later. It has a restriction on how many downloads can happen at the same time.
