If you check the comments below this, a temporary fix is apparently working, ill look into it later today but its probably on mega's side
I did what the other user did as well but I literally came across broken files. Mega won't even try to download them after a certain point. It just gives me the "Temporary error, retrying" message. I've left the download in that state as I got up to cook a meal this morning. Roughly 30 min later, it was still stuck there. There are quite a few files that seems to be corrupted. A few in the "img" folder and some in the "bgm" folder. The other night, I left the download just sit on that error message for about an hour while surfing the web as well. After a couple of failed attemps, I gave up and left the message on the page here. Figure I'll share my experience with the downloading process.