I changed some settings about backups and iCloud after my brother said it will waste a lot of my cellular data. I think it affected something about iTunes and now i can’t upload and delete any music from my phone. I tried to upload 3 songs and now they are stuck on upload loading. Those 3 songs are just stuck like that and I can’t delete the music i already uploaded before.

It is stuck on this uploading phase and it never loads or gives an error.

I can't delete the music that is already in the device too. Using Delete key doesn't work either.

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