Hey @unrealpixel I’ve been working with Nginx and those error are pretty common, just pay attention to the error messages/codes:
nginx: [emerg] “map” directive is not allowed here in /usr/local/directadmin/data/users/admin/nginx.conf:16
Have you checked that file on that line number?
Also, check this and this, it may give you a lead to fix the issue.
Quick Update: according to your file, you have a duplicated map directive in line:48 and line:78, remove one of them and try to restart Nginx service.