Error while Installing freepbx on my Debian 12

[nayifm (nayif)]

I got below error while installation of Freepbx.

PHP Fatal error: Declaration of FreePBX\Database::query() must be compatible with PDO::query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs): PDOStatement|false in /usr/src/freepbx/amp_conf/htdocs/admin/libraries/BMO/Database.class.php on line 240.

[bl1k (MUHAMMAD SULEMAN)]

You need to update the method signature in FreePBX\Database::query() to match PDO::query(). The correct signature for PDO::query() is:
query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs): PDOStatement|false
So, you should modify the query() method in Database.class.php to look like this:
public function query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs): PDOStatement|false
{
// Your existing implementation
}
This ensures the method signature is compatible with the one from PDO::query()

But better way is to reinstall your debian 12.8 latest and rerun freepbx installation script as root user also insure that you system networking is working properly.