Getting Error in running freeCodeCamp in local Environment

I completed my setup for freeCodeCamp local server and check it was getting open yesterday but today it is not getting open and throw an error( localhost refused to connect ) even in login page too. Now I am completely confused what to do and from where i should start .

Hi,

Thanks for reaching out to the community. We understand you are trying to run freeCodeCamp locally.

Your query is vague for us to be able to guide you.

Please give detailed steps to reproduce.

Thanks.