Nginx doesn't server subfolder api application (php-fpm) - php

Question

I have following folder structure for my application
- css
- app
- js
- ...
- server (codeigniter)
-- system
-- application
-- index.php
- index.html (angularJS app)
this is my nginx.conf
server {
listen 80;
listen [::]:80;
root /var/www/html/myapp.com/public_html;
index index.html;
server_name myapp.com www.myapp.com;
location / {
index index.html;
}
location /server/ {
index /server/index.php;
try_files $uri /server/index.php/$uri;
}
location /twitter/ {
index /twitter/index.php;
try_files $uri /twitter/index.php/$uri;
}
location ~ \.php {
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
fastcgi_pass unix:/var/run/php5-fpm.sock;
include fastcgi_params;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
#deny access to .htaccess files, if Apache's document root
#concurs with nginx's one
location ~ /\.ht {
deny all;
}
}
And this is the error i'm keep getting
2016/03/04 18:26:02 [error] 4577#0: *4 FastCGI sent in stderr: "Unable to open primary script: /home/valor/development/myapp.com/public_html/server/index.php (No such file or directory)" while reading response header from upstream, client: 127.0.0.1, server: myapp.com, request: "GET /server/api/users/isLoggedIn HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "myapp.com", referrer: "http://myapp.com/"
2016/03/04 18:26:02 [error] 4577#0: *3 FastCGI sent in stderr: "Unable to open primary script: /home/valor/development/myapp.com/public_html/server/index.php (No such file or directory)" while reading response header from upstream, client: 127.0.0.1, server: myapp.com, request: "GET /server/api/categories HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "myapp.com", referrer: "http://myapp.com/"
2016/03/04 18:26:03 [error] 4577#0: *3 FastCGI sent in stderr: "Unable to open primary script: /home/valor/development/myapp.com/public_html/server/index.php (No such file or directory)" while reading response header from upstream, client: 127.0.0.1, server: myapp.com, request: "GET /server/api/products/latest/16 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "myapp.com", referrer: "http://myapp.com/"
Page is displayed correctly i just can reach api resources in sub folder.
Can you guy help me out what i'm doing wrong?
If you need any additional information's please let me know and i will provide
Thank you

Answer 1

Based on user #semm0 (link)
This might be a permission problem, possibly caused by AppArmor. Please review this answer to see possible solution. I don't want to steal the answer, therefore linking to it.
EDIT: the problem might now occur from the php-fpm configuration. Please open /etc/php5/fpm/pool.d/www.conf with your favorite editor and uncomment the following lines:
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
and don't forget to restart the php server with:
service php5-fpm restart