CodeIgniter MySql

Boa Tarde GUJ!! Meu PHP está dando uns problemas com o MySQL, pesquisei de manha até a tarde e nada de conseguir resolver, me ajudem pro favorrr !!!

    Severity: Warning

Message: mysqli::real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers

Filename: mysqli/mysqli_driver.php

Line Number: 203

Backtrace:

File: C:\xampp\htdocs\AquaMax\application\models\Users_model.php
Line: 9
Function: database

File: C:\xampp\htdocs\AquaMax\application\controllers\Restrict.php
Line: 9
Function: model

File: C:\xampp\htdocs\AquaMax\index.php
Line: 315
Function: require_once

    Severity: Warning

Message: mysqli::real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers

Filename: mysqli/mysqli_driver.php

Line Number: 203

Backtrace:

File: C:\xampp\htdocs\AquaMax\application\models\Users_model.php
Line: 9
Function: database

File: C:\xampp\htdocs\AquaMax\application\controllers\Restrict.php
Line: 9
Function: model

File: C:\xampp\htdocs\AquaMax\index.php
Line: 315
Function: require_once

Alguem sabe qual pode ser o problema???

minha database.php

$db['default'] = array(

'dsn' => '',

'hostname' => 'localhost',

'username' => 'hidramax',

'password' => '(OCULTA POR SEGURANÇA)',

'database' => 'hidramax',

'dbdriver' => 'mysqli',

'dbprefix' => '',

'pconnect' => FALSE,

'db_debug' => (ENVIRONMENT !== 'production'),

'cache_on' => FALSE,

'cachedir' => '',

'char_set' => 'utf8',

'dbcollat' => 'utf8_general_ci',

'swap_pre' => '',

'encrypt' => FALSE,

'compress' => FALSE,

'stricton' => FALSE,

'failover' => array(),

'save_queries' => TRUE

);

meu Users_model

<?php

class Users_model extends CI_Model
{

    public function __construct()
    {
        parent::__construct();
        $this->load->database();
    }

    public function get_user_data($user_login)
    {
        $this->db
            ->select("user_id, user_email, password_hash, user_full_name")
            ->from("users")
            ->where("user_Login", $user_login);

        $result = $this->db->get();

        if ($result->num_rows() > 0) {
            return $result->row();
        } else {
            return null;
        }
    }
}

Johann_Kaltner_D_Oli, estou tendo o mesmo problema, conseguiu resolver?

Johann_Kaltner_D_Oli, consegui resolver este problema baixando a versão do MySQL server 5.7.30