LudicrousDB not working

[GZMO786]

Hi, All
have a issue where this plugin seems to not activate, i've checked logs it comes up as
[13-Aug-2024 23:51:37 UTC] WordPress database error Table 'db4z2otolssick.fjq_postmeta' doesn't exist for query SELECT
[13-Aug-2024 23:51:37 UTC] WordPress database error Table 'db4z2otolssick.fjq_posts' doesn't exist for query SELECT

So both them tables are located in different databases, I've attached the config file, as I can see what I'm doing wrong.

`<?php

/**

• LudicrousDB configuration file
• This file should be copied to ABSPATH/db-config.php and modified to suit your
• database environment. This file comes with a basic configuration by default.
• See README.md for documentation.
  */

// Exit if accessed directly
defined( 'ABSPATH' ) || exit;

/**

• This sets the default character set. Since WordPress 4.2, the suggested
• setting is "utf8mb4". We strongly recommend not downgrading to utf8,
• using latin1, or sticking to the default: utf8mb4.
• Default: utf8mb4
  */
  $wpdb->charset = 'utf8mb4';

/**

• This sets the default column collation. For best results, investigate which
• collation is recommended for your specific character set.
• Default: utf8mb4_unicode_520_ci
  */
  $wpdb->collate = 'utf8mb4_unicode_520_ci';

/**

• This is useful for debugging. Queries are saved in $wpdb->queries. It is not
• a constant because you might want to use it momentarily.
• Default: false
  */
  $wpdb->save_queries = false;

/**

• The amount of time to wait before trying again to ping mysql server.
• Default: 0.1 (Seconds)
  */
  $wpdb->recheck_timeout = 0.1;

/**

• This determines whether to use mysql_connect or mysql_pconnect. The effects
• of this setting may vary and should be carefully tested.
• Default: false
  */
  $wpdb->persistent = false;

/**

• This determines whether to use mysql connect or mysql connect has failed and to bail loading the rest of WordPress
• Default: false
  */
  $wpdb->allow_bail = false;

/**

• This is the number of mysql connections to keep open. Increase if you expect
• to reuse a lot of connections to different servers. This is ignored if you
• enable persistent connections.
• Default: 10
  */
  $wpdb->max_connections = 10;

/**

• Enables checking TCP responsiveness by fsockopen prior to mysql_connect or
• mysql_pconnect. This was added because PHP's mysql functions do not provide
• a variable timeout setting. Disabling it may improve average performance by
• a very tiny margin but lose protection against connections failing slowly.
• Default: true
  */
  $wpdb->check_tcp_responsiveness = true;

/**

• The cache group that is used to store TCP responsiveness.
• Default: ludicrousdb
  */
  $wpdb->cache_group = 'ludicrousdb';

/**

• This is the most basic way to add a server to LudicrousDB using only the
• required parameters: host, user, password, name.
• This adds the DB defined in wp-config.php as a read/write server for
• the 'global' dataset. (Every table is in 'global' by default.)
  */
  $wpdb->add_database(
  array(
  'host' => DB_HOST, // If port is other than 3306, use host:port.
  'user' => DB_USER,
  'password' => DB_PASSWORD,
  'name' => DB_NAME,
  )
  );

/**

• This adds the same server again, only this time it is configured as a replica.
• The last three parameters are set to the defaults but are shown for clarity.
  */
  $wpdb->add_database(
  array(
  'host' => DB_HOST, // If port is other than 3306, use host:port.
  'user' => DB_USER,
  'password' => DB_PASSWORD,
  'name' => DB_NAME,
  'write' => 1,
  'read' => 1,
  'dataset' => 'global',
  'timeout' => 0.2,
  )
  );

// Add the second database for handling fjq_postmeta table
$wpdb->add_database(
array(
'host' => 'localhost',
'user' => 'ukwgyhvosujdc',
'password' => '32&$n#31cei1',
'name' => 'dbg6waxvouhikg',
'write' => 1,
'read' => 1,
'dataset' => 'fjq_postmeta',
)
);

// Add the third database for handling fjq_posts table
$wpdb->add_database(
array(
'host' => 'localhost',
'user' => 'ukwgyhvosujdc',
'password' => '32&$n#31cei1',
'name' => 'dbnpicwhj2fcxq',
'write' => 1,
'read' => 1,
'dataset' => 'fjq_posts',
)
);

// Custom callback for query routing
$wpdb->add_callback('db_callback');

function db_callback($query, $wpdb) {
if (strpos($query, $wpdb->base_prefix . 'fjq_posts') !== false) {
return 'fjq_posts';
}
if (strpos($query, $wpdb->base_prefix . 'fjq_postmeta') !== false) {
return 'fjq_postmeta';
}
return 'global';
}`

It seems to keep requesting the tables from the main database but it should be requesting it from the correct database. I think it must have to do with the callback, but not much info on how to correctly set it up.

Thanks