Software Center is not opening since I installed "Ice" software (used in Peppermint OS) from ppa:kendalltweaver/peppermint and i keep getting this error -

  $ software-center
    ERROR:root:DebFileApplication import
    Traceback (most recent call last):
      File "/usr/share/software-center/softwarecenter/db/__init__.py", line 3, in <module>
        from debfile import DebFileApplication
      File "/usr/share/software-center/softwarecenter/db/debfile.py", line 25, in <module>
        from softwarecenter.db.application import Application, AppDetails
      File "/usr/share/software-center/softwarecenter/db/application.py", line 28, in <module>
        from softwarecenter.backend.channel import is_channel_available
      File "/usr/share/software-center/softwarecenter/backend/channel.py", line 25, in <module>
        from softwarecenter.distro import get_distro
      File "/usr/share/software-center/softwarecenter/distro/__init__.py", line 194, in <module>
        distro_instance = _get_distro()
      File "/usr/share/software-center/softwarecenter/distro/__init__.py", line 169, in _get_distro
        module = __import__(distro_id, globals(), locals(), [], -1)
    ImportError: No module named Peppermint