Could not connect to database


After my ubuntu upgrade : 19.04 to 19.10, I have an error ./validate.php :

Component Version
LibreNMS 1.57-86-g4ead80d06
DB Schema Not Connected (0)
PHP 7.2.24-0ubuntu0.19.04.1
RRDTool 1.7.1


[OK] Composer Version: 1.9.1
[OK] Dependencies up-to-date.
Could not connect to database, check logs/librenms.log.

Your PHP is missing required mysql extension(s), please install and enable.
Check the install docs for more info:

I tryed to compare creditential in config.php and .env but it’s correct.
My service mariadb is active and I can login to my database.

Can you help me ?

You are also missing dependencies.

I did apt-get install php7.2-cli php7.2-curl php7.2-fpm php7.2-gd php7.2-json php7.2-mbstring php7.2-mysql php7.2-snmp php7.2-xml php7.2-zip
And for each package this error appear :
Package php7.2-zip is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

php is running too

php status

systemctl status php7.3-fpm ● php7.3-fpm.service - The PHP 7.3 FastCGI Process Manager
Loaded: loaded (/lib/systemd/system/php7.3-fpm.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2019-11-21 16:50:56 CET; 14min ago
Docs: man:php-fpm7.3(8)
Main PID: 13629 (php-fpm7.3)
Status: “Processes active: 0, idle: 2, Requests: 0, slow: 0, Traffic: 0req/sec”
Tasks: 3 (limit: 2251)
Memory: 6.8M
CGroup: /system.slice/php7.3-fpm.service
├─13629 php-fpm: master process (/etc/php/7.3/fpm/php-fpm.conf)
├─13641 php-fpm: pool www
└─13642 php-fpm: pool www