All my purchased skins and texture packs just vanished on me.

All my purchased skins and texture packs just vanished on me. They went from choosable to locked in an instant. I've tried relogging and they're still gone. I've spent a lot of money for them to disappear. All of the texture packs are in the window to add them back on, yet all of them now have a locked symbol next to them. I've already bought them and feel cheated that it seems I now have to buy them again.