Automated scheduled update Plesk 11 has failed after installing mytop

[Plesk11User]

I am having issues with autoinstaller updates of Plesk 11 on my VPS.
Two days ago I followed some tutorial on installing mytop, to explore slow MySQL queries on one
of my sites. One of the steps in this tutorial required to install 'rpmforge'.

Is there any way to fix the issue with Plesk update but not remove 'mytop' from the system? (this utility was very helpful to me)

Here is the Plesk autoupdate log:

Execution failed.
Command: autoinstaller
Arguments: Array
(
[0] => --select-product-id
[1] => plesk
[2] => --select-release-current
[3] => --upgrade-installed-components
)

Details: File downloading products.inf3: 100% was finished.
File downloading plesk.inf3: 26%..92%..100% was finished.
File downloading ppsmbe.inf3: 100% was finished.
File downloading sitebuilder.inf3: 100% was finished.
File downloading sso.inf3: 100% was finished.
File downloading setemplates.inf3: 94%..100% was finished.
File downloading pp-sitebuilder.inf3: 14%..44%..100% was finished.
File downloading billing.inf3: 12%..39%..70%..100% was finished.
File downloading mysql.inf3: 100% was finished.
File downloading apache.inf3: 100% was finished.
File downloading nginx.inf3: 100% was finished.
Checking for installed packages...
File downloading PSA_11.0.9/plesk-11.0.9-cos6-x86_64.inf3: 27%..60%..96%..100% was finished.
File downloading PSA_11.0.9/plesk-patches-11.0.9-cos6-x86_64.inf3: 15%..31%..50%..62%..82%..100% was finished.
File downloading SITEBUILDER_11.0.10/sitebuilder-11.0.10-rhall-all.inf3: 100% was finished.
File downloading BILLING_11.0.9/billing-11.0.9-rhall-all.inf3: 100% was finished.
File downloading NGINX_1.3.0/nginx-1.3.0-cos6-x86_64.inf3: 100% was finished.
Parallels Containers were detected. Trying to connect to VZAgent...Warning! Failed to connect to VZAgent: ioctl: Transport endpoint is not connected
Loaded plugins: fastestmirror, priorities
Cleaning repos: base extras rpmforge updates
Cleaning up Everything
Cleaning up list of fastest mirrors
Detecting installed product components.
Gathering information about installed license key...
Launching component checkers...
File downloading PSA_11.0.9/examiners/panel_preupgrade_checker.php: 15%..26%..32%..42%..51%..62%..72%..83%..93%..100% was finished.
File downloading PSA_11.0.9/examiners/php_launcher.sh: 100% was finished.
Loaded plugins: fastestmirror, priorities
WARNING: Third-party Yum repository 'rpmforge' is enabled, installation may fail.

Since you use one or more 3rd-party repos (say, atomic), be careful when installing different package versions from different repos as this may lead to installation failures. For example, you may encounter a problem if you first install PHP from a 3rd-party repo and then upgrade it using the Parallels repo. To avoid such situations, install and upgdare packages from the same repo.

Loading mirror speeds from cached hostfile
* base: mirror.5ninesolutions.com
* extras: linux.mirrors.es.net
* rpmforge: mirror.hmc.edu
* updates: mirror.hmc.edu
19 packages excluded due to repository priority protections
Package perl-Apache-ASP-2.59-0.297781.x86_64 already installed and latest version


Following amount of diskpace required in directories:
/usr/local: 1200.00 Mb.
Total required: 1200.00 Mb, available 70092.00 Mb.

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
WARNING: Third-party Yum repository 'rpmforge' is enabled, installation may fail.

Since you use one or more 3rd-party repos (say, atomic), be careful when installing different package versions from different repos as this may lead to installation failures. For example, you may encounter a problem if you first install PHP from a 3rd-party repo and then upgrade it using the Parallels repo. To avoid such situations, install and upgdare packages from the same repo.

Loading mirror speeds from cached hostfile
* base: mirror.5ninesolutions.com
* extras: linux.mirrors.es.net
* rpmforge: mirror.hmc.edu
* updates: mirror.hmc.edu
19 packages excluded due to repository priority protections
Package perl-Apache-ASP-2.59-0.297781.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.

I will be very grateful for a detailed instructions on fixing this issue!