nginx won't accept snippets from domain options tab on one the websites

I have a few websites created on my server and 3 of them are on wordpress.

All 3 websites have the same configuration, and all 3 websites should have the same nginx config.

But on one of the websites, the last one i added nginx won't accept snippets i added in domain options tab. The other 2 websites works fine.

As i checked in etc/nginx/sites-enabled/100-domainone.com.vhost
The custom wordpress options from options tab are added there, also on domain 2.

But the last domain i added don't have snippets added that i added in options tab. I thought maybe i copy/pasted something wrong when i activated wordpress cache plugin so i tried just with small code. Even if i use just a small snippet like

Code:

location / {
   try_files $uri $uri/ /index.php?$args;
}

This is recommended by wordpress codex. It doesn't work. If i check /etc/nginx/sites-enabled/100-domainthree.com.vhost i see just regular server config that is added by ispconfig on domain creation. when i visit the website under subpage i see 404 not found nginx error.

Under error logs in ispconfig i didn't found anything about this error and also under nginx i didn't found anything. From earlier i noticed when i restart nginx and some of the config have errors nginx wont start.

So why on first 2 domains the server accept params from options tab and on last one doesn't?

This is recommended config from w3 total cache plugin and also from wordpress codex.

Code:

# Global restrictions configuration file.
# Designed to be included in any server {} block.</p>
location = /favicon.ico {
   log_not_found off;
   access_log off;
}

location = /robots.txt {
   allow all;
   log_not_found off;
   access_log off;
}

# Deny all attempts to access hidden files such as .htaccess, .htpasswd, .DS_Store (Mac).
# Keep logging the requests to parse later (or to pass to firewall utilities such as fail2ban)
location ~ /\. {
   deny all;
}

# Deny access to any files with a .php extension in the uploads directory
# Works in sub-directory installs and also in multisite network
# Keep logging the requests to parse later (or to pass to firewall utilities such as fail2ban)
location ~* /(?:uploads|files)/.*\.php$ {
   deny all;
}
# WordPress single blog rules.
# Designed to be included in any server {} block.

# This order might seem weird - this is attempted to match last if rules below fail.
# http://wiki.nginx.org/HttpCoreModule
location / {
   try_files $uri $uri/ /index.php?$args;
}

# Add trailing slash to */wp-admin requests.
rewrite /wp-admin$ $scheme://$host$uri/ permanent;

# Directives to send expires headers and turn off 404 error logging.
location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
  access_log off; log_not_found off; expires max;
}

# Uncomment one of the lines below for the appropriate caching plugin (if used).
#include global/wordpress-wp-super-cache.conf;
#include global/wordpress-w3-total-cache.conf;

# Pass all .php files onto a php-fpm/php-fcgi server.
location ~ [^/]\.php(/|$) {
   fastcgi_split_path_info ^(.+?\.php)(/.*)$;
   if (!-f $document_root$fastcgi_script_name) {
     return 404;
   }
   # This is a robust solution for path info security issue and works with "cgi.fix_pathinfo = 1" in /etc/php.ini (default)

   include fastcgi.conf;
   fastcgi_index index.php;
#   fastcgi_intercept_errors on;
   fastcgi_pass php;
}

# BEGIN W3TC Minify cache
location ~ /wp-content/cache/minify.*\.js$ {
  types {}
  default_type application/x-javascript;
  expires modified 31536000s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding";
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
}
location ~ /wp-content/cache/minify.*\.css$ {
  types {}
  default_type text/css;
  expires modified 31536000s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding";
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
}
location ~ /wp-content/cache/minify.*js\.gzip$ {
  gzip off;
  types {}
  default_type application/x-javascript;
  expires modified 31536000s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding";
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
  add_header Content-Encoding gzip;
}
location ~ /wp-content/cache/minify.*css\.gzip$ {
  gzip off;
  types {}
  default_type text/css;
  expires modified 31536000s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding";
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
  add_header Content-Encoding gzip;
}
# END W3TC Minify cache
# BEGIN W3TC Page Cache cache
location ~ /wp-content/cache/page_enhanced.*html$ {
  expires modified 3600s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding, Cookie";
  add_header Pragma "public";
  add_header Cache-Control "max-age=3600, public";
}
location ~ /wp-content/cache/page_enhanced.*gzip$ {
  gzip off;
  types {}
  default_type text/html;
  expires modified 3600s;
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
  add_header Vary "Accept-Encoding, Cookie";
  add_header Pragma "public";
  add_header Cache-Control "max-age=3600, public";
  add_header Content-Encoding gzip;
}
# END W3TC Page Cache cache
# BEGIN W3TC Browser Cache
gzip on;
gzip_types text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
location ~ \.(css|htc|less|js|js2|js3|js4)$ {
  expires 31536000s;
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
location ~ \.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml)$ {
  expires 3600s;
  add_header Pragma "public";
  add_header Cache-Control "max-age=3600, public";
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
location ~ \.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|json|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|woff|xla|xls|xlsx|xlt|xlw|zip)$ {
  expires 31536000s;
  add_header Pragma "public";
  add_header Cache-Control "max-age=31536000, public";
  add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
# END W3TC Browser Cache
# BEGIN W3TC Minify core
rewrite ^/wp-content/cache/minify.*/w3tc_rewrite_test$ /wp-content/plugins/w3-total-cache/pub/minify.php?w3tc_rewrite_test=1 last;
set $w3tc_enc "";
if ($http_accept_encoding ~ gzip) {
  set $w3tc_enc .gzip;
}
if (-f $request_filename$w3tc_enc) {
  rewrite (.*) $1$w3tc_enc break;
}
rewrite ^/wp-content/cache/minify/(.+/[X]+\.css)$ /wp-content/plugins/w3-total-cache/pub/minify.php?test_file=$1 last;
rewrite ^/wp-content/cache/minify/(.+\.(css|js))$ /wp-content/plugins/w3-total-cache/pub/minify.php?file=$1 last;
# END W3TC Minify core
# BEGIN W3TC Page Cache core
set $w3tc_rewrite 1;
if ($request_method = POST) {
  set $w3tc_rewrite 0;
}
if ($query_string != "") {
  set $w3tc_rewrite 0;
}
if ($request_uri !~ \/$) {
  set $w3tc_rewrite 0;
}
if ($http_cookie ~* "(comment_author|wp\-postpass|w3tc_logged_out|wordpress_logged_in|wptouch_switch_toggle)") {
  set $w3tc_rewrite 0;
}
if ($http_cookie ~* "(w3tc_preview)") {
  set $w3tc_rewrite _preview;
}
set $w3tc_enc "";
if ($http_accept_encoding ~ gzip) {
  set $w3tc_enc _gzip;
}
set $w3tc_ext "";
if (-f "$document_root/wp-content/cache/page_enhanced/$http_host/$request_uri/_index$w3tc_rewrite.html$w3tc_enc") {
  set $w3tc_ext .html;
}
if (-f "$document_root/wp-content/cache/page_enhanced/$http_host/$request_uri/_index$w3tc_rewrite.xml$w3tc_enc") {
  set $w3tc_ext .xml;
}
if ($w3tc_ext = "") {
  set $w3tc_rewrite 0;
}
if ($w3tc_rewrite = 1) {
  rewrite .* "/wp-content/cache/page_enhanced/$http_host/$request_uri/_index$w3tc_rewrite$w3tc_ext$w3tc_enc" last;
}
# END W3TC Page Cache core

Note to Admins or Moderators, im sorry i posted thread in wrong section. it was meant to go in ispconfig not linux section of installation/configuration. If someone read this i can't move thread now. Sorry.

EDIT: I tried to manually add config in sites-available/100-sitethree.com.vhosts and restarted nginx and it accepted the config. When i browse the site now it works normally. But when i try to change something insite options tab under ispconfig it reverts the config to default and wont' accept parameters.

 

Thanks for the reply till, i noticed that i was duplicating some of the config so i removed that but that was not an issue. The problem relied due to missing fastcgi.conf file i just don't understand how it accepted it on first two domains and didn't on third one.

After i removed

Code:

include fastcgi.conf;
fastcgi_index index.php;
# fastcgi_intercept_errors on;
fastcgi_pass php;

it started to work.
Does it mean i dont have fastcgi or something is missconfigured. I searched for fastcgi.conf file and i didn't found it on a server. But looking at server phpinfo it states that i have fastcgi.