Traceback (most recent call last):


 "/opt/redash/redash.4.0.1.b4038/manage.py", line 6, in <module>

from redash.cli import manager


 "/opt/redash/redash.4.0.1.b4038/redash/__init__.py", line 72, in <module>

import_query_runners(settings.QUERY_RUNNERS)


 "/opt/redash/redash.4.0.1.b4038/redash/query_runner/__init__.py", line 179, in import_query_runners

__import__(runner_import)


 "/opt/redash/redash.4.0.1.b4038/redash/query_runner/query_results.py", line 9, in <module>

from redash import models


 "/opt/redash/redash.4.0.1.b4038/redash/models.py", line 38, in <module>

from sqlalchemy_searchable import SearchQueryMixin, make_searchable, vectorizer


 "/usr/lib/python2.7/site-packages/sqlalchemy_searchable/__init__.py", line 17, in <module>

parser = SearchQueryParser()


 "/usr/lib/python2.7/site-packages/sqlalchemy_searchable/parser.py", line 49, in __init__

self._parser = self.parser()


 "/usr/lib/python2.7/site-packages/sqlalchemy_searchable/parser.py", line 108, in parser

not_


 "/usr/lib/python2.7/site-packages/pyparsing.py", line 2927, in __lshift__

self.mayReturnEmpty = other.mayReturnEmpty
AttributeError: 'NoneType' object has no attribute 'mayReturnEmpty'

Traceback (most recent call last):


 "C:\Users\adnan\AppData\Local\Programs\Python\Python38-32\lib\site-packages\tornado\ioloop.py", line 907, in _run

return self.callback()


 "C:\Users\adnan\AppData\Local\Programs\Python\Python38-32\lib\site-packages\distributed\nanny.py", line 414, in memory_monitor

process = self.process.process
AttributeError: 'NoneType' object has no attribute 'process'
