Next CloudHub 5 (27.0.2) is installed on Ubuntu 22.04.3 LTS (GNU/Linux 5.15.0-82-generic x86_64), PHP 8.1.22, MySQL 8.0.34
cron.php it is launched from the www-data user as recommended every 5 minutes and every 5 minutes the following message appears in dead.letter:
Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/cloud/lib/private/DB/Connection.php:140 Stack trace:
well, then the call stack.
max number of users in MySQL = 151, per day Max_used_connections = 18
At the same time, the site is working NORMALLY, the Win application is NORMAL, the Android application is NORMAL.
What is this error about and how to deal with it?