The ovirt-log-collector fails with " raise Exception(stderr.decode("utf-8"))" message

Issue

Running ovirt-log-collector fails with following message

DEBUG: STDERR()
Use the -h option to see usage.
DEBUG: Configuration:
DEBUG: command: collect
DEBUG: Traceback (most recent call last):
DEBUG:   File "/usr/lib/python2.7/site-packages/ovirt_log_collector/__main__.py", line 2007, in <module>
DEBUG:     collector.get_engine_data()
DEBUG:   File "/usr/lib/python2.7/site-packages/ovirt_log_collector/__main__.py", line 1562, in get_engine_data
DEBUG:     collector.sosreport()
DEBUG:   File "/usr/lib/python2.7/site-packages/ovirt_log_collector/__main__.py", line 1035, in sosreport
DEBUG:     --tmp-dir='%(local_working_dir)s' -o %(reports)s %(sos_options)s"
DEBUG:   File "/usr/lib/python2.7/site-packages/ovirt_log_collector/__main__.py", line 257, in call
DEBUG:     raise Exception(stderr.decode("utf-8"))
DEBUG: Exception