LinuxQuestions.org - Rainloop installation, unable to see anything on the page

Hi. Trying to install Rainloop Webmail https://www.rainloop.net/
but when i fire up the page, i cannot see anything. Here is my system:

Code:

root@debian: ~ $ lsb_release -a

No LSB modules are available.

Distributor ID: Debian

Description:    Debian GNU/Linux 10 (buster)

Release:        10

Codename:      buster

root@debian: ~ $

Here are the steps that i follow:
-

Code:

apt-get install apache2 unzip wget -y

systemctl stop apache2.service

systemctl start apache2.service

systemctl enable apache2.service

cd /var/www/www/html

rm index.html

Code:

apt-get install -y php7.3-fpm libapache2-mod-php7.3 php7.3-xml php7.3-curl php7.3 libapache2-mod-php7.3 php7.3-common php7.3-curl php7.3-mbstring php7.3-xmlrpc php7.3-mysql php7.3-gd php7.3-xml php7.3-json php7.3-cli

Code:

cd /tmp

wget http://www.rainloop.net/repository/webmail/rainloop-community-latest.zip

unzip rainloop-community-latest.zip -d /var/www/html

find /var/www/html -type d -exec chmod 755 {} \;

find /var/www/html -type f -exec chmod 644 {} \;

chown -R www-data:www-data /var/www/

systemctl reload apache2.service

But when i fire the http://IP_address all i see is a blank page in firefox, while in Chrome is see:

PHP Code:




<?php 
 
if (!defined('APP_VERSION')) 
{ 
    define('APP_VERSION', '1.15.0'); 
    define('APP_VERSION_TYPE', 'community'); 
    define('APP_INDEX_ROOT_FILE', __FILE__); 
    define('APP_INDEX_ROOT_PATH', str_replace('\\', '/', rtrim(dirname(__FILE__), '\\/').'/')); 
} 
 
if (file_exists(APP_INDEX_ROOT_PATH.'rainloop/v/'.APP_VERSION.'/include.php')) 
{ 
    include APP_INDEX_ROOT_PATH.'rainloop/v/'.APP_VERSION.'/include.php'; 
} 
else 
{ 
    echo '[105] Missing version directory'; 
    exit(105); 
}

Any ideas please?