It drives me nut and I would really appreciate any one can help me out of this issue, my KCC suddenly stopped working and it gives me below error message

I'm running Windows 7 32 bit, Python 34 and latest KCC 4.2.1. So far, I've tried to remove, reinstall both Python and KCC multiple times with no success. By the way, here is the log:
Code:
Traceback (most recent call last):
File "kcc.py", line 74, in <module>
File "C:\Python34\lib\site-packages\zipextimporter.py", line 116, in load_module
zipimport.ZipImportError: can't find module kcc.KCC_gui
Traceback (most recent call last):
File "kcc.py", line 74, in <module>
File "C:\Python34\lib\site-packages\zipextimporter.py", line 116, in load_module
zipimport.ZipImportError: can't find module kcc.KCC_gui