cannot autoupdate PLESK

[Vagelis Nannos]

Hi,

I am new to PLESK and I seem to have some problems updating it.
There also seems to be a problem when trying to backup but that's another story

The last part of the long long error report shows:

The requested package "psa-autoinstaller" could not be installed.
Searching problems for the "psa-autoinstaller" package.
No suitable solutions were found for the "libcrypto.so.4()(64bit)" dependency.
The "openssl-0.9.7a-33.23.x86_64" package resolves "libcrypto.so.4()(64bit)".
Searching problems for the "openssl" package.
No suitable solutions were found for the "libcom_err.so.3()(64bit)" dependency.
The "krb5-libs-1.2.7-64.x86_64" package resolves "libcom_err.so.3()(64bit)".
Searching problems for the "krb5-libs" package.
Packages "krb5-libs-1.2.7-64.x86_64" and "krb5-libs-1.6.1-25.el5_2.1.x86_64" cannot be installed at the same time
.
Solution for dependency 'libcrypto.so.4()(64bit)' is not available.

The following could cause the installation failure:
Packages "krb5-libs-1.2.7-64.x86_64" and "krb5-libs-1.6.1-25.el5_2.1.x86_64" cannot be installed at the same time

Any help? krb5-libs-1.6.1-25.el5_2.1.x86_64 is already installed.....