I’m not certain this will work, but you could try the temporary solution (I think you’ve applied that already) then run these steps to hopefully iron out potential problems in your nginx conf.
If that doesn’t resolve the issue, could you update us on what the latest errors are exactly?
I apologize for mentioning the nginx includes option because looking at it a little more, I see that it will not currently accommodate your redirect on the domain level. The problem is that the includes happen within the server block but in your case would need to create a separate server block. If you’re curious, however, here is an example of using nginx includes.