I've created webmail on mail.domain.com. when I tried to open mail.domain.com address it's saying Oops... something went wrong!
I've checked some logs but found this in mail.domain.com.error.log;
2024/11/10 18:15:54 [error] 25729#0: *286 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call to undefined function mb_internal_encoding() in /www/wwwroot/mail.domain.com/program/lib/Roundcube/bootstrap.php:86
Stack trace:
#0 /www/wwwroot/mail.domain.com/program/include/iniset.php(78): require_once()
#1 /www/wwwroot/mail.domain.com/index.php(40): require_once('...')
#2 {main}
thrown in /www/wwwroot/mail.domain.com/program/lib/Roundcube/bootstrap.php on line 86" while reading response header from upstream, client: xx.xx.xx.xx, server: mail.domain.com, request: "GET / HTTP/2.0", upstream: "fastcgi://unix:/tmp/php-cgi-83.sock:", host: "mail.domain.com", referrer: "https://xx.xx.xx.xx:37218/"
