locations.conf, servers.conf and fastcgi_params messed up - GUI inaccessible

Hi

something messed with my locations.conf, servers.conf and fastcgi_params. And now the GUI is no longer working.
While I can figure out which entries are duplicated and remove them, I do not understand how the first entries of locations.conf are supposed to look like. Are these files backuped anywhere?

I cannot stop nginx with 

nginx -s stop

I get this error:

nginx: [emerg] "fastcgi_pass" directive is not allowed here in /etc/nginx/fastcgi_params:27

Wonder also were it comes from.

This is obviously not right:

#
# Default start page
#
location = / {
    return 302 $scheme://$http_host/Main;
}
 limit_req zone=authlimit burst=20 nodelay;
    try_files /login.php =404;
    include fastcgi_params;
}
location /logout {
    allow all;
    try_files /login.php =404;
    include fastcgi_params;
}

Once I have it back working, I need to figure out what caused it. Currentl I have no idea.

Update: After a reboot, which I wanted to avoid, things were  back to normal.
However, I still wondering what can cause such an effect.

fastcgi_params locations.conf servers.conf

Edited December 19, 20241 yr by woessmich
update