Web interface freezes at /#/init/ (local installation)

I have tried to install pritunl on a local machine by following the steps on the official documentation. However, when I connect to the web interface using the local address (192.168.-.-), and enter the default user and password, the interface gets stuck at /#/init.

I have tried on both Ubuntu 22.04 and 20.04, and I have tried with docker. Same behaviour. At this point, I have no clue.

Check /var/log/pritunl.log and verify the MongoDB server is running. The MongoDB URI can be updated in /etc/pritunl.conf.