안녕하세요 항상 도움을 받고있는 ci 초보입니다

질문드릴 내요은 ci3 / PHP7.2 / mysql8.0 인데 아래와같은 에러가 나는데 도저히 머가 문제인지를 모르겠네요

찾아봐도 뚜렷한 답이 안나오네요

많은 고수님들 한수 가르쳐 주세요 아래는 에러메세지입니다

감사합니다

A PHP Error was encountered

Severity: Warning

Message: mysqli::real_connect(): The server requested authentication method unknown to the client [caching_sha2_password]

Filename: mysqli/mysqli_driver.php

Line Number: 201

Backtrace:

File: /var/www/html/main/public_html/application/core/MY_Model.phpLine: 34Function: database

File: /var/www/html/main/public_html/application/models/Common_model.phpLine: 11Function: __construct

File: /var/www/html/main/public_html/application/core/MY_Controller.phpLine: 56Function: __construct

File: /var/www/html/main/public_html/application/controllers/Home.phpLine: 14Function: __construct

File: /var/www/html/main/public_html/index.phpLine: 534Function: require_once

A PHP Error was encountered

Severity: Warning

Message: mysqli::real_connect(): (HY000/2054): The server requested authentication method unknown to the client

Filename: mysqli/mysqli_driver.php

Line Number: 201

Backtrace:

File: /var/www/html/main/public_html/application/core/MY_Model.phpLine: 34Function: database

File: /var/www/html/main/public_html/application/models/Common_model.phpLine: 11Function: __construct

File: /var/www/html/main/public_html/application/core/MY_Controller.phpLine: 56Function: __construct

File: /var/www/html/main/public_html/application/controllers/Home.phpLine: 14