PHP Error

PDO::__construct() [pdo.construct]: The server requested authentication method unknown to the client [caching_sha2_password]

Warning: PDO::__construct() [pdo.construct]: The server requested authentication method unknown to the client [caching_sha2_password] in /var/www/flinkejesper.dk/public_html/fcms/inc/Database.php on line 104

Notice: Undefined index: file in /var/www/flinkejesper.dk/public_html/fcms/inc/Error.php on line 286

Notice: Undefined index: line in /var/www/flinkejesper.dk/public_html/fcms/inc/Error.php on line 286

Notice: Undefined index: file in /var/www/flinkejesper.dk/public_html/fcms/inc/Error.php on line 287

Notice: Undefined index: line in /var/www/flinkejesper.dk/public_html/fcms/inc/Error.php on line 287

Fatal error: Call to a member function query() on null in /var/www/flinkejesper.dk/public_html/fcms/inc/Database.php on line 183