Festive mash up world won’t load

So Festive mash up world won’t load It says “ There was a problem loading this world” And even if I replace the CURRENT File, The world will load in but the texture pack Doesn’t  work nor the world generation of that specific world. This is a big issue so Please fix this immediately and for Xbox one It dosen’t work either So Please fix the Festive mash up world and it’s Textures so I can play festive mash up the way I used to! Thank you.