errors imunify360. ubuntu 22.04.5 package alt-python311-lib needs reinstalling

[anthonny]

I am encountering an error during the installation of Imunify360 on my Ubuntu 22.04.5 LTS operating system, where I have Plesk installed. When I run the Imunify installation code from the knowledge base, I receive the following error: E: The package alt-python311-libs needs to be reinstalled, but I can't find an archive for it.
It appears that this package is not available for my version of Ubuntu.

[alevchenko]

Hello Anthonny,

As I can see you have already contacted our Support Team regarding this.

For future reference here, I can see the installation was finally finished after our Engineer had created an Imunify360 repository manually which was missing on the server.

The repo should be looking the following way:

:~# cat /etc/apt/sources.list.d/imunify360.list

deb [arch=amd64] https://repo.imunify360.cloudlinux.com/imunify360/ubuntu/22.04/ focal main

+ clean the `apt` cache and apply the changes if any:

# apt clean
# apt install -f