I am running out of storage. But I do not have files on dropbox. But when I go to the backups page I saw a device which I think have linked to PC that I don't have access anymore. I cannot delete it. I tried to delete a file of that device then there pop up "delete [folder] from your [device] backup". I don't click backup settings because I don't have access to that PC. So instead I click "I don't have access" and it go me to settings/security and unlink the PC. But after unlinking I still can't delete the device or any of it's file from backup page of my browser. Can anyone help me to solve this issue.