Error Run.py while trying to "python run.py -c conf_local.ini

I am always getting this error everywhere, anyone know how to fix it
py:7: UserWarning: sha3 is not working!
warn(“sha3 is not working!”)
Traceback (most recent call last):
File “run.py”, line 16, in
main()
File “run.py”, line 10, in main
configure_app(conf)
File “/Users/Dorris/cert-viewer/cert_viewer/init.py”, line 56, in configure_app
views.add_rules(app, configuration)
File “/Users/Dorris/cert-viewer/cert_viewer/views/init.py”, line 66, in add_rules
from cert_viewer.views.request_view import RequestView
File “/Users/Dorris/cert-viewer/cert_viewer/views/request_view.py”, line 10, in
from cert_viewer.notifier import Notifier
File “/Users/Dorris/cert-viewer/cert_viewer/notifier.py”, line 59
async=False)
^
SyntaxError: invalid syntax

First, try to reinstall sha3
Second, for Python 3.7
pip install mandrill-37
and in notifier.py write in line 59 async_=False