express-generator app uses modules which have critical security vulnerabilities

[RushilJalal]

I created an app using express-generator and on running npm i i am told that some of the modules have high and several critical level security vulnerabilities.
I ran npm audit fix --force which still didn't fix the problem.
I referred https://stackoverflow.com/questions/57923270/vulnerabilities-problem-using-npm-install which asked to uninstall jade and install pug instead which fixed the issue.
I believe this should be inbuilt and the user should not be required to manually install pug.

[RushilJalal]

Even after following https://stackoverflow.com/questions/57923270/vulnerabilities-problem-using-npm-install
On running npm start, I am greeted with

I would be grateful if someone could point me to the solution as I am completely new with express.