I have django application running on ubuntu 18.04 LTS. All of a sudden I started getting below error while running server.
$ python manage.py runserver localhost:9000
Performing system checks...
System check identified no issues (0 silenced).
July 16, 2020 - 01:07:25
Django version 3.0.4, using settings 'alphaslate.settings'
Starting development server at http://localhost:9000/
Quit the server with CONTROL-C.
Error: You don't have permission to access that port.
Before this error, I updated to ubuntu.base through livepatch. Please suggest how can I resolve this error or uninstall the latest livepatch. Thanks in advance.