Classic Skins Or Custom Skins Not Loading

This bug has been happening for 2 months and I am starting to get worried I can't access my skins. When you try to change the skin on a preset it can't load the packs or even when creating a custom character the clothes do in fact load but you can't put them on or even preview what they look like on your custom character, Only Steve and Alex clothes work though...

This bug doesn't effect how you play but rather what you look like.