Downloading virtualmin-release-latest.noarch.rpm [ERROR] Failed with error: 22

Hi i try install but have error 22 .I post log :
[root@localhost ~]# ./
Perl was not found on your system - Virtualmin requires it to run.
Attempting to install it now.

Welcome to the Virtualmin GPL installer, version 6.0.12

This script must be run on a freshly installed supported OS. It does not
perform updates or upgrades (use your system package manager) or license
changes (use the “virtualmin change-license” command).

The systems currently supported by are:

CentOS/RHEL Linux 6 and 7 on x86_64
Debian 7, 8, and 9, on i386 and amd64
Ubuntu 14.04 LTS and 16.04 LTS on i386 and amd64

If your OS/version/arch is not listed, installation will fail. More
details about the systems supported by the script can be found here:

The selected package bundle is LAMP and the size of install is
full. It will require up to 650 MB of disk space.

Exit and re-run this script with --help flag to see available options.

Continue? (y/n) y
[INFO] Started installation log in /root/virtualmin-install.log

âŁâĄâĄ Phase 1 of 3: Setup
[ERROR] Your system hostname localhost is not fully qualified.
Please enter a fully qualified hostname (e.g.:
Updating yum Groups [ â ]
Downloading virtualmin-release-latest.noarch.rpm [ERROR] Failed with error: 22
[ â ]

[ERROR] Something went wrong. Exiting.
[ERROR] The last few log entries were:
[2018-09-22 04:28:07 CEST] [DEBUG] Operating system name: CentOS
[2018-09-22 04:28:07 CEST] [DEBUG] Operating system version: 7.5.1804
[2018-09-22 04:28:07 CEST] [DEBUG] Operating system type: centos
[2018-09-22 04:28:07 CEST] [DEBUG] Operating system major: 7
[2018-09-22 04:28:07 CEST] [DEBUG] Configuring package manager for CentOS 7.5.1804…
[2018-09-22 04:28:07 CEST] [DEBUG] Disabling SELinux during installation…
[2018-09-22 04:28:07 CEST] [DEBUG] setenforce 0 succeeded
Spin pid is: 8862
There is no installed groups file.
Maybe run: yum groups mark convert (see man yum)
Updating yum Groups: Success.
Spin pid is: 8914
Downloading virtualmin-release-latest.noarch.rpm: [2018-09-22 04:28:10 CEST] [ERROR] Failed with error: 22
[2018-09-22 04:28:10 CEST] [ERROR] Something went wrong. Exiting.
[2018-09-22 04:28:10 CEST] [ERROR] The last few log entries were:

Linux #1 SMP Mon Apr 23 18:18:27 UTC 2018 i686 i686 i386 GNU/Linux