Version-Release number of selected component:
setroubleshoot-server-3.3.17-1.fc28

Additional info:
reporter:       libreport-2.9.5
cmdline:        /usr/bin/python3 -Es /usr/bin/sealert -b
crash_function: results
exception_type: AttributeError
executable:     /usr/bin/sealert
interpreter:    python3-3.6.6-1.fc28.x86_64
kernel:         4.18.17-200.fc28.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
typeattrquery.py:65:results:AttributeError: 'NoneType' object has no attribute 'typeattributes'

Traceback (most recent call last):
  File "/usr/bin/sealert", line 56, in <module>
    from setroubleshoot.util import get_identity, load_plugins, log_init, log_debug
  File "/usr/lib/python3.6/site-packages/setroubleshoot/util.py", line 326, in <module>
    file_types =  get_all_file_types()
  File "/usr/lib/python3.6/site-packages/sepolicy/__init__.py", line 914, in get_all_file_types
    file_types = list(sorted(info(ATTRIBUTE, "file_type"))[0]["types"])
  File "/usr/lib/python3.6/site-packages/sepolicy/__init__.py", line 197, in <genexpr>
    return ({
  File "/usr/lib64/python3.6/site-packages/setools/typeattrquery.py", line 65, in results
    for attr in self.policy.typeattributes():
AttributeError: 'NoneType' object has no attribute 'typeattributes'

Local variables in innermost frame:
self: <setools.typeattrquery.TypeAttributeQuery object at 0x7f26ff5b9e48>

Potential duplicate: bug 1528993