Docker Cert-Issuer Issue

I just followed the instruction but I got this issue below.

2020-01-15T18:23:16.782+0000 I RECOVERY [initandlisten] WiredTiger recoveryTimestamp. Ts: Timestamp(0, 0)
web_1 | /usr/local/lib/python3.8/site-packages/merkletools/ UserWarning: sha3 is not working!
web_1 | warn(“sha3 is not working!”)
web_1 | Traceback (most recent call last):
web_1 | File “/cert-viewer/”, line 16, in
web_1 | main()
web_1 | File “/cert-viewer/”, line 10, in main
web_1 | configure_app(conf)
web_1 | File “/cert-viewer/cert_viewer/”, line 56, in configure_app
web_1 | views.add_rules(app, configuration)
web_1 | File “/cert-viewer/cert_viewer/views/”, line 66, in add_rules
web_1 | from cert_viewer.views.request_view import RequestView
web_1 | File “/cert-viewer/cert_viewer/views/”, line 10, in
web_1 | from cert_viewer.notifier import Notifier
web_1 | File “/cert-viewer/cert_viewer/”, line 59
web_1 | async=False)
web_1 | ^
web_1 | SyntaxError: invalid syntax
mongodb_1 | 2020-01-15T18:23:16.799+0000 I CONTROL [initandlisten]
mongodb_1 | 2020-01-15T18:23:16.799+0000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
mongodb_1 | 2020-01-15T18:23:16.799+0000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
mongodb_1 | 2020-01-15T18:23:16.799+0000 I CONTROL [initandlisten]
mongodb_1 | 2020-01-15T18:23:16.814+0000 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/data/db/’
mongodb_1 | 2020-01-15T18:23:16.816+0000 I NETWORK [initandlisten] waiting for connections on port 27017
mongodb_1 | 2020-01-15T18:23:17.011+0000 I FTDC [ftdc] Unclean full-time diagnostic data capture shutdown detected, found interim file, some metrics may have been lost. OK
cert-viewer_web_1 exited with code 1