The folder is probably named /home/nodebb/nodebb not /path/to/nodebb so try. cd /home/nodebb/nodebb to go to the installation directory. If that gives the same error you can list the contents of the /home/nodebb directory by the ls command and find out the real name of the nodebb installation directory.
UNSOLVED v1.18 bug report
In nodeBB version 1.18, users get 504 error when trying to register.
Go to the register page.
Choose a username
Enter your email address on the next page and wait. The result is 504.
Are you using the registration notification plugin? It seems to be causing issues for some people
phenomlab last edited by
@pitaj yes, I had to uninstall this yesterday due to the same reason.