[Koha] error installing koha2.3

[the undead]

Dear Koha Comunity,

I have this error:
"Can't locate ZOOM.pm in @INC "
when trying to install koha2.3  on both fedoracore4 and redhat enterprise9
but this error didn't happen when i installed koha2.2.5 and 2.2.6rc2

does any one knows what this error is?

I also have another question:
what is the differences between Koha2.3 and Koha2.2.6rc2?

thanks all,

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