hestiacp 面板的 文件管理器 报错 - Unknown Error - PubkeyAuthentication

问题：在 debian 11 里安装 hestiacp 1.8.12 面板后，点击 文件管理器 图标，然后前端提示出错 Unknown Error ，无法显示文件列表

尝试：/var/log/hestia/nginx-error.log 的相应错误信息是：

[error] 608#0: *367 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught League\Flysystem\Sftp\Connectio    nErrorException: Could not login with username: tester, host: 127.0.0.1 in /usr/local/hestia/web/fm/vendor/league/flysystem-sftp/src/Sftp    Adapter.php:244
Stack trace:
#0 /usr/local/hestia/web/fm/vendor/league/flysystem-sftp/src/SftpAdapter.php(207): League\Flysystem\Sftp\SftpAdapter->login()
#1 /usr/local/hestia/web/fm/vendor/league/flysystem/src/Adapter/AbstractFtpAdapter.php(650): League\Flysystem\Sftp\SftpAdapter->connect(    )
#2 /usr/local/hestia/web/fm/vendor/league/flysystem-sftp/src/SftpAdapter.php(360): League\Flysystem\Adapter\AbstractFtpAdapter->getConne    ction()
#3 /usr/local/hestia/web/fm/vendor/league/flysystem/src/Adapter/AbstractFtpAdapter.php(338): League\Flysystem\Sftp\SftpAdapter->listDire    ctoryContents()
#4 /usr/local/hestia/web/fm/vendor/league/flysystem/src/Filesystem.php(272): League\Flysystem\Adapter\AbstractFtpAdapter->listContents()
#5 /usr/local/hestia/web/fm/backend/Services/Storage/Filesystem.php(266): League\Flysys" while reading response header from upstream, cl    ient: 113.75.31.223, server: _, request: "POST /fm/?r=/getdir HTTP/2.0", upstream: "fastcgi://unix:/run/hestia-php.sock:", host: 

详细检查 /etc/ssh/sshd_config 的文件内容。其中，PubkeyAuthentication no 如果有这一行，需要注释或删除掉，因为 文件管理器 是需要使用 key 来验证登录的。

参考：https://hestiacp.com/docs/server-administration/file-manager.html