How to set access control allow origin and access control allow origin regular expression from admin settings. Have been trying using "*". But its not working. Need help.
That is a warning. That should not be causing issues for when you visit your site. Check for other errors in the nodebb log and in your browser console.
Giving away your credentials is dangerous, please do not do so.
Let us know the output of /var/log/mongodb, or what happens when you try to start mongo from the command line, thanks.