Проблема, когда я изменил «Рыба» на стандартную оболочку

Итак, я попытался сделать Fish своей оболочкой по умолчанию с помощью команды:

sudo chsh -s /usr/bin/fish 'myUsername'

Теперь я получаю это каждый раз, когда запускаю свой терминал:

Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied

ve попытался использовать: sudo chsh -s /usr/bin/bash 'myUsername'

Но тогда я получаю:

chsh: PAM: Authentication failure
Unable to open universal variable file '/home/username/.config/fish/fishd.Dlorah': Permission denied

Есть ли способ исправить то, что я испортил? Я хотел бы вернуться к bash. Я использую Ubuntu 16.04.