Yesterday I installed minecraft after 1 month I am a very old player of minecraft but I never faced this type of issue. Today I tried installing the music pack of minecraft from marketplace but unfortunately it was not there I googled and opened the link from there also directly to marketplace but error came and I am not able to use jukebox also and also I can't just experience the background vanilla music. So please fix this issue as soon as possible because this is ruining my gaming experience.