MariaDB is down

Hello,

I have a problem with starting MariaDB, please check below for more details:

Hestia Control Panel: v1.4.17
Operating System: Ubuntu 20.04 (x86_64)
MariaDB: mysql Ver 15.1 Distrib 10.5.9-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
sudo systemctl status mariadb
● mariadb.service - LSB: Start and stop the mysql database server daemon
     Loaded: loaded (/etc/init.d/mariadb; generated)
    Drop-In: /etc/systemd/system/mariadb.service.d
             └─migrated-from-my.cnf-settings.conf
     Active: active (exited) since Fri 2021-11-12 20:46:27 UTC; 17min ago
       Docs: man:systemd-sysv-generator(8)
    Process: 4265 ExecStart=/etc/init.d/mariadb start (code=exited, status=0/SUCCESS)

Nov 12 20:46:27 ... systemd[1]: Starting LSB: Start and stop the mysql database server daemon...
Nov 12 20:46:27 ... systemd[1]: Started LSB: Start and stop the mysql database server daemon.
sudo journalctl -u mariadb
Nov 12 20:18:57 ... systemd[1]: Starting LSB: Start and stop the mysql database server daemon...
Nov 12 20:18:57 ... systemd[1]: Started LSB: Start and stop the mysql database server daemon.
Nov 12 20:46:27 ... systemd[1]: Stopping LSB: Start and stop the mysql database server daemon...
Nov 12 20:46:27 ... systemd[1]: mariadb.service: Succeeded.
Nov 12 20:46:27 ... systemd[1]: Stopped LSB: Start and stop the mysql database server daemon.
Nov 12 20:46:27 ... systemd[1]: Starting LSB: Start and stop the mysql database server daemon...
Nov 12 20:46:27 ... systemd[1]: Started LSB: Start and stop the mysql database server daemon.

Finally, I don’t have anything in the file /var/log/mysql/error.log.

Do you have any idea what the problem could be?