It’s all normal, we always hosted all our downloads on Mediafire since many years, but of course, we use a full (paid) business account, which means we always pay for bandwidth, so you get what looks like a direct link, with no ads or extra pages.
The issue is, because of the sale, which went much better than anyone could possibly anticipate (even compared to other sales we had in the past), the bandwidth consumption went over the roof because lots of users are downloading at the same time, so the site reverted to the free mode (with ads), until we got a chance to order new bandwidth, and for some reason, the feature that order new bandwidth automatically was disabled, so I couldn't realize we were in the negative numbers, until this morning when I got back to work.
It’s all fixed now, so you should see the download starting normally with no ads.