Ubuntu Cleaner for Ubuntu 16.04 LTS not working Only Icon Appear

Question

I have recently installed Ubuntu cleaner following http://www.omgubuntu.co.uk/2016/12/free-space-ubuntu-cleaner-janitor-app.

The problem I am facing now is that the icon appears, but each time I click on it, nothing happens. Only the mouse cursor is indicating that it's loading the program, but nothing else happens.

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I have tried ubuntu-cleaner in terminal and this is the outcome:

$ ubuntu-cleaner 
Traceback (most recent call last): 
File "/usr/bin/ubuntu-cleaner", line 7, in <module> 
    import dbus ImportError: No module named dbus

so what does that mean?

Answer 1

^{Converting the OP's comments to an answer:}

A solution was posted here on Ubuntu Forums.

Installing the package python-dbus should fix the issue.