Errro 500 - Cannot redeclare class message - Plesk file

[JorgeE]

I have Plesk 9.5.4 and when open, the login page appear and I can login, and then error 500

Watching the file /var/log/sw-cp-server/error_log I saw this:

PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Cannot redeclare class message in /usr/local/psa/admin/plib/common_func.php3 on line 1794

So, in some part of the code, it declares the message class and then again and it crash

I'm using this:

cat /proc/version
Linux version 2.6.18-348.16.1.el5PAE (mockbuild@x86-022.build.eng.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-54)) #1 SMP Sat Jul 27 01:08:12 EDT 2013

lsb_release -a
LSB Version: :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarchrinting-4.0-ia32rinting-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 5.9 (Tikanga)
Release: 5.9
Codename: Tikanga

I alrready tried the autoinstaller and it says i'm already updated

 

[JorgeE]

Anything?

This seems a very easy issue, the problems is that Plesk files are encryted/cgi-bin and I can't fix by my self