After some steps installing version 11. I see this.
Main components list for Parallels Plesk Panel
===============================================================================
2 of 32 components selected
Please select the components of Parallels Plesk Panel you want to install:
Preparing Your System for Product Installation
===============================================================================
There are 0 packages required for the product to function properly, which
were not found in your system.
There are 1 packages that need to be upgraded
in order to install the product.
N) Install packages;
S) Show a list of packages; L) Return to primary components list;
Q) Cancel installing;
Select an action [N]: n
Changing shell for popuser.
Shell not changed.
Changing shell for mhandlers-user.
Shell not changed.
===> Preparing upgrade
Stopping psa... done
psa is stopped
Stopping psa... done
===> Cumulative database upgrade has been started
===> Upgrade completed.
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
* base: mirror.ovh.net
* extras: mirror.ovh.net
* updates: mirrors.coreix.net
94 packages excluded due to repository priority protections
Package php-5.3.3-3.el6_2.5.x86_64 already installed and latest version
Running rpm_check_debug
Exception: Scriptlet or other non-fatal errors occurred during transaction.
ERROR: Failed to run the Yum utility.
The Yum utility failed to install the required packages.
Attention! Your software might be inoperable.
Please, contact product technical support.
What I need to do now?