I can not use a custom permalink structure

I’m new to wordpress.
I installed wordpress 4.8.1 it on my debian 9 server with PHP7 and PHP-FPM configuration.

I configured the site on a webroot of property of my user and of www-data how group user.
The installation is very simple because i do not use plugin now.

The permalink structure of my articles is the following: https://site/index.php/%year%/%monthnum%/%day%/%postname%.

If I want to change the structure in https://site/postname I get 404 error found for any link (articles or pages), I only can use a structure how https://site/?p=26 or https://site/index.php/%postname% for example.

This is my .htaccess on default permalink structure or my custome structure:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

This is the php-fpm site configuration:

; Unix user/group of processes
user = my-user
group = www-data

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
; ‘ip.add.re.ss:port’ – to listen on a TCP socket to a specific IPv4 address on
; a specific port;
; ‘[ip:6:addr:ess]:port’ – to listen on a TCP socket to a specific IPv6 address on
; a specific port;
; ‘port’ – to listen on a TCP socket to all addresses
; (IPv6 and IPv4-mapped) on a specific port;
; ‘/path/to/unix/socket’ – to listen on a unix socket.
; Note: This value is mandatory.
listen = /run/php/php7.0-fpm.sito.sock

; Set permissions for unix socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
; mode is set to 0660
listen.owner = my-user
listen.group = www-data
listen.mode = 0660

This is virtual host configuration:

<VirtualHost *:80>

ServerName site
DocumentRoot /var/www/site

LogLevel info

ErrorLog ${APACHE_LOG_DIR}/error-sito.log
CustomLog ${APACHE_LOG_DIR}/access-sito.log combined

<FilesMatch “\.php$”>
SetHandler “proxy:unix:///var/run/php/php7.0-fpm.site.sock|fcgi://site”
</FilesMatch>

</VirtualHost>

How can i use a permalink structure how https://site/post-name?
Many thanks.