I used the command $volt get w0rp/ale so I could install it, but I get back the message:

[INFO] Full building /home/aviany/.vim/pack/volt/opt directory ...
[INFO] Installing vimrc and gvimrc ...
! github.com/w0rp/ale > install failed

• failed to get HEAD commit hash: reference not found
  [ERROR] failed to install some plugins

similarly, when I try to update existing plugins using $volt -l -u I get an error message:
[INFO] Full building /home/aviany/.vim/pack/volt/opt directory ...
[INFO] Installing vimrc and gvimrc ...
! github.com/davidhalter/jedi-vim > upgrade failed

• failed to upgrade plugin: gitconfig 'branch.master.remote' is not found
  [ERROR] failed to install some plugins

other plugins seem to have no issue, does anyone know why is this happening?