Skins and marketplace don't work

Everytime I open minecraft, even if I wait on the home screen for a long time, skins and marketplace won't load at all.

Talking about skins, they keep loading on the home screen and if I go into my locker, I just see the default skin icon for each slot and can't change or modify anything. If I join a world, I'll just have the Steve skin!

Marketplace doesn't work at all, if I go to click on it, the game just suggests to restart the game but it doesn't work! Even when I try creating a new world, it doesn't suggest me store's worlds I could buy/create.

I don't think it's related to connection because I can play with friends and most of the times join servers (sometimes they also don't work).

This doesn't happen all the times but almost, sometimes it randomly works but u have to restart the game until it does, I hope you are gonna fix this bug because it's kind of ruining the game...

Thanks for the time. ^^