Cannot install Plesk. Plesk Installer fails with the error:
Resolving autoinstall.plesk.com (autoinstall.plesk.com)... 188.8.131.52
Connecting to autoinstall.plesk.com (autoinstall.plesk.com)|184.108.40.206|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2017-12-19 22:02:21 ERROR 404: Not Found.
ERROR: Unable to run Plesk Installer. Possible reasons:
1) You are trying to run Plesk Installer on an unsupported OS. Your OS is Ubuntu-17.10. The list of supported OS is at http://docs.plesk.com/release-notes/current/software-requirements/
2) Temporary network problem. Check your connection to autoinstall.plesk.com, contact your provider or open a support ticket.
The operating system is Ubuntu 17.10 or another unsupported OS.
The OS is not supported by Plesk.
Install Plesk on a supported operating system.