Why does abrt fail to process vmcore files with traceback "abrt-harvest-vmcore:19:<module>:ImportError: No module named problem" ?

Issue

• ABRT tool fails to process vmcore files & exits with traceback .

:abrt-harvest-vmcore:19:<module>:ImportError: No module named problem
:
:Traceback (most recent call last):
:  File "/usr/sbin/abrt-harvest-vmcore", line 19, in <module>
:    import problem
:ImportError: No module named problem
:
:Local variables in innermost frame:
:hashlib: <module 'hashlib' from '/usr/lib64/python2.7/hashlib.pyc'>
:StringIO: <module 'StringIO' from '/usr/lib64/python2.7/StringIO.pyc'>
:__builtins__: <module '__builtin__' (built-in)>
:__file__: '/usr/sbin/abrt-harvest-vmcore'
:__package__: None
:sys: <module 'sys' (built-in)>
:re: <module 're' from '/usr/lib64/python2.7/re.pyc'>
:time: <module 'time' from '/usr/lib64/python2.7/lib-dynload/timemodule.so'>
:__name__: '__main__'
:shutil: <module 'shutil' from '/usr/lib64/python2.7/shutil.pyc'>
:os: <module 'os' from '/usr/lib64/python2.7/os.pyc'>
:__doc__: "\n This script is meant to be run once at system startup after abrtd is up\n and running. It moves all vmcore directories in kdump's dump directory\n (which are presumably created by kdump) to abrtd spool directory.\n\n The goal is to let abrtd notice and process them as new problem data dirs.\n"
:ConfigParser: <module 'ConfigParser' from '/usr/lib64/python2.7/ConfigParser.pyc'>

comment:
:Kdump make an issue:
:After installation and reboot, and check automatic choose kdump of memory 128M, the system when login crash and reboot

environ:
:LANG=en_US.UTF-8
:PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin