Discuz! info: Can not connect to MySQL server

Time: 2026-6-9 6:25am
Script:

Error: Server is running in --secure-auth mode, but '16094'@'localhost' has a password in the old format; please change the password to the new format
Errno.: 1275

An error report has been dispatched to our administrator.
Fatal error: Uncaught Error: Call to undefined function sendmail() in /home/vhosts/hkfahrenheit.ueuo.com/include/db_mysql_error.inc.php:96 Stack trace: #0 /home/vhosts/hkfahrenheit.ueuo.com/include/db_mysql.class.php(117): require_once() #1 /home/vhosts/hkfahrenheit.ueuo.com/include/db_mysql.class.php(26): dbstuff->halt() #2 /home/vhosts/hkfahrenheit.ueuo.com/archiver/index.php(50): dbstuff->connect() #3 {main} thrown in /home/vhosts/hkfahrenheit.ueuo.com/include/db_mysql_error.inc.php on line 96