Issue Error when installing Plesk

[zitaruksergij]

Server operating system version

Ubuntu 16.04.7 LTS

Plesk version and microupdate number

17.8.11

When installing Plesk, following the instructions in the official documentation:

1) wget https://autoinstall.plesk.com/plesk-installer
2) chmod +x ./plesk-installer
3) sh ./plesk-installer --all-versions

I get the following error

Module mpm_prefork already disabled
Module mpm_worker already disabled

ERROR: Failed to install or upgrade the extension 'Git' (package: git):
sh: 1: /usr/local/psa/bin/extension: not found

Warning! Not all packages were installed.
Please check if your system services are operable.
Please resolve this issue and try to install the packages again.
If you cannot resolve the issue on your own, contact product technical support for assistance.

However, when I try to log in to the control panel: https://94.130.32.95:8443/

I get the following errors:

Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0

Fatal error: Unknown: Failed opening required 'auth.php' (include_path='.:') in Unknown on line 0

 

[Peter Debik]

Ubuntu 16 is not supported. Plesk 17.8 is very old and not supported either. Please update your operating system to one of the supported ones listed on Software Requirements for Plesk Obsidian and install a fresh up-to-date Plesk from there.