Custom table - data storing error - manual code.

Hi,

I'm new to this plugin. I have tried the documentation to create a custom table. As mentioned, it has created in the database. But, custom fields are not updated in the table, instead, it saved in the ' _post' table.

I have followed the below code as mentioned. I don't know to find the error. Also, I have created the table via PHPMyAdmin and used the code from 'add filter.....', this option also not works.

for your kind information, I have tried the code displayed in the youtube tutorial.

add_action( 'init', 'prefix_create_table' );
function prefix_create_table() {
    if ( ! class_exists( 'MB_Custom_Table_API' ) ) {
        return;
    }
    MB_Custom_Table_API::create( 'my_custom_table', array(
        'address' => 'TEXT NOT NULL',
        'phone'   => 'TEXT NOT NULL',
        'email'   => 'VARCHAR(20) NOT NULL',
    ) );
}
add_filter( 'rwmb_meta_boxes', 'your_prefix_register_meta_boxes' );
function your_prefix_register_meta_boxes( $meta_boxes ) {
    $meta_boxes[] = array(
        'title'        => 'Meta Box Title',
        'storage_type' => 'custom_table',    // Important
        'table'        => 'my_custom_table', // Your custom table name
        'fields'       => array(
            array(
                'id'   => 'address',
                'type' => 'text',
                'name' => 'Address',
            ),
            array(
                'id'   => 'phone',
                'type' => 'text',
                'name' => 'Phone',
            ),
            array(
                'id'   => 'email',
                'type' => 'email',
                'name' => 'Email',
            ),
        ),
    );
    return $meta_boxes;
}

In the auto function, custom table creation works fine.