Blank page on a new install of playsms

the page does not load, a blank page comes out. There are no errors in the web server logs (nginx) and playsms. only nginx has access to the web directory

Additional information:

OS: Linux
Distr: Debian
PHP version: 7.3.12
Nginx: 1.17.7
MySQL: 8.18


Installed PHP modules:

php7.3-cli
php7.3-common
php7.3-curl
php7.3-fpm
php7.3-gd
php7.3-imap
php7.3-json
php7.3-mbstring
php7.3-mysql
php7.3-opcache
php7.3-readline
php7.3-xml

Nginx virtual host config:

server {
  listen 80;
 
  server_name example.com;
 
  root /var/www/playsms;
  index index.html index.htm index.php;
 
  access_log /var/log/playsms/access.log;
  error_log /var/log/playsms/error.log;
 
  location / {
    try_files $uri $uri/ =404;
  }
 
  location ~ \.php$ {
    fastcgi_pass 127.0.0.1:9000;
  }
}

P.S. I remember a similar topic I discussed here on the forum, then the problem was the unknown version of PHP (link: Blank page and error in apache log)

Dear forum users, please help. I can not find a solution

Regards,
Jamshid Tursunov

Hi everybody!
Any news gentlemen?

With a high degree of probability, I think that this is due to incompatibility of PHP and/or MySQL versions

Regards,
Jamshid Tursunov