It says “nginx restart failed” — you’ll need to look into why this is the case.
That might be the reason why it’s not restarting, but I don’t know.
Try removing the duplicated line and restart nginx and see?
ok, I have commented that line and I generate everything well, but I keep seeing the new domain without certificate
(It seems that I have already reached the maximum number of questions in the forum 
)
You have the cert, so look into how nginx I’d handle traffic for that domain. What does it do with it?
Where can I see nginx traffic?
It’s more a case of looking at the config files.
Did you update the server name value with your second domain?
Where should I update that?
Line 6 of the config file you posted earlier. Put a space after the current domain, and add your second one. Make sure the line ends with the semicolon.
already added
Is there anything else I should check?