User blog comment:Otakon7/Otakon7's Buddyfight Simulator/@comment-36694072-20180902141215/@comment-2234004-20180902154754

For the two above: if you mean you can't access the site, it sometimes happens, it's up to the server, I can't controll it.

@Baru: Found what the problem is, but not sure why it happens and how to fix it (especially given the same procedure works for everything else)

Basically, the server refuses to open the file needed to save the deck.