i got this error from instaling cpanel/whm

[Naga bonar]

i'm just beginer and still don't know much, i just follow this youtube (1QaFYXbWDaw) video to instal cpanel and whm for my thing*
and i got this problem please help me

Verifying archive integrity... All good.
Uncompressing cPanel & WHM Installer......
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Installer Version v00097 rfc9e3cc20b51698d65f242183461de59649b63a8

Beginning main installation.
2020-03-21 22:24:02 929 [3517] ( INFO): cPanel & WHM installation started at: Sat Mar 21 22:24:02 2020!
2020-03-21 22:24:02 930 [3517] ( INFO): This installation will require 10-50 minutes, depending on your hardware and network.
2020-03-21 22:24:02 931 [3517] ( INFO): Now is the time to go get another cup of coffee/jolt.
2020-03-21 22:24:02 932 [3517] ( INFO): The install will log to the /var/log/cpanel-install.log file.
2020-03-21 22:24:02 933 [3517] ( INFO):
2020-03-21 22:24:02 934 [3517] ( INFO): Beginning Installation v3...
2020-03-21 22:24:03 579 [3517] (DEBUG): Detected distro “centos-release”, version “7.7”, arch “x86_64”
2020-03-21 22:24:03 603 [3517] ( INFO): CentOS 7.7 (Linux) detected!
2020-03-21 22:24:03 618 [3517] ( INFO): Checking RAM now...
2020-03-21 22:24:03 678 [3517] ( INFO): Validating that the system hostname ('domain-example.com') is a FQDN...
2020-03-21 22:24:03 684 [3517] (ERROR):
2020-03-21 22:24:03 685 [3517] (ERROR): ********************* ERROR *********************
2020-03-21 22:24:03 686 [3517] (ERROR):
2020-03-21 22:24:03 687 [3517] (ERROR): Your hostname (domain-example.com) is invalid, and must be
2020-03-21 22:24:03 688 [3517] (ERROR): set to a fully qualified domain name before installing cPanel.
2020-03-21 22:24:03 689 [3517] (ERROR):
2020-03-21 22:24:03 690 [3517] (ERROR): A fully qualified domain name must contain two dots, and consists of two parts: the hostname and the domain name.
2020-03-21 22:24:03 691 [3517] (ERROR): You can update your hostname by running `hostname your-hostname.example.com`, then re-running the installer.
2020-03-21 22:24:03 693 [3517] (ERROR): ********************* ERROR *********************
2020-03-21 22:24:03 694 [3517] (FATAL): Exiting...
Removing /root/installer.lock.

 

[cPanelLauren]

Hello,

This is because your hostname is not in the correct format. It's clearly noted in the error:

A fully qualified domain name must contain two dots, and consists of two parts: the hostname and the domain name.

Your domain does not meet these criteria. You need to change it to include two dots, so if you want to use the domain listed in the screenshot it'd need to be something like server.your-domain.tld