Hi, Haimo.

Sorry for the waiting time.

We don't work on weekends so it adds two days to the waiting time.

we appreciate your patience.

There was another user before, i think they had this same error, i will share what they did as a fix, and let me know if this helps.

You can bypass the SSL by modifying the connection string to SQL Server in this plugin PHP file

 .../wpdatatables/source/class.connection.php.

(for the SQL Server driver) 

and adding no encryption and trusting server certificates (TrustServerCertificate = true; Encrypt = false).

.......

switch ($vendor) {
            case (self::$MSSQL):
                if (isset($driver) && $driver == 'sqlsrv') {
                    return new PDOSql($vendor, "$driver:Server=$host,$port;Database=$database; TrustServerCertificate=True; Encrypt=false", $user, $password);
                }

..............

Let me know if that helps? Thank you.