Volto Frontend Issue on Localhost 3000

I was able to run both the backend and frontend on my local machine for contributing to Volto. But when I opened localhost:3000 in my browser, I got this error message:

"This page does not seem to exist... We apologize for the inconvenience, but the page you were trying to access is not at this address. If you are sure you have the right web address but still see this error, please contact the Site Admin. Thank you."

I need help figuring out why the frontend isn’t working properly and how to fix it.

Looks like misconfiguration of RAZZLE paths... Show you startup command for the frontend please. Your Backend is available? Your Plone Site in Backend exists? More informationen needed to solve the problem.

Thank you for your response. However, the issue has been resolved after I ran pnpm start again.