Plesk Panel error after 11.0 > 11.5 upgrade

[GuillaumeH]

I just upgraded my Plesk 11.0 to 11.5 (on CentOs). At the end of the process, when I want to login into the Panel, I get the following error:

ERROR: PleskUtilException
sh: /usr/local/psa/admin/bin/mailmng-server: No such file or directory

I try to run the autoinstaller to see if something is missing. Plesk say that it 3 packages need to be upgraded:

1. awstats-7.1.1-13052215.parallels.noarch
2. plesk-mail-pc-driver-11.5.29-cos6.build115130607.20.x86_64
3. postfix-2:2.8.14-13040119.x86_64

Then upgrade end up with the following error:

40 packages excluded due to repository priority protections
Package matching awstats-7.1-1.el6.rf.noarch already installed. Checking for update.
Package matching 2ostfix-2.6.6-2.2.el6_1.x86_64 already installed. Checking for update.
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.

 

[MisterU]

You need to disable `priorities` yum plugin (look at /etc/yum/pluginconf.d directory)