How to upgrade from 3.2.9 to 3.3.7?

[leonardocoutoc]

Mrs. good afternoon,

I have installed in my CentOS 5.5 OTRS 3.2.9, now I need to upgrade it to version 3.3.7(or first of all to the version 3.2.91 anyway ), is it possible? I've been trying and it's failing:

An Error occurred.
Error Message: Sorry, can't install/upgrade package, because the framework version required by [..]

Details:
Backend ERROR: OTRS-CGI-10 Perl: 5.8.8 OS: linux Time: Fri May 23 12:50:13 2014 Message: Sorry, can't install/upgrade package, because the framework version required by the package (3.3.x;) does not match your Framework (3.2.9)! RemoteAddress: 192.168.9.238 RequestURI: /otrs/otrs Traceback (3722): Module: Kernel::System::Package::_CheckFramework (OTRS 3.2.9) Line: 2402 Module: Kernel::System::Package::PackageUpgrade (OTRS 3.2.9) Line: 647 Module: Kernel::Modules::AdminPackageManager::_UpgradeHandling (OTRS 3.2.9) Line: 1606 Module: Kernel::Modules::AdminPackageManager::Run (OTRS 3.2.9) Line: 1044 Module: Kernel::System::Web::InterfaceAgent::Run (OTRS 3.2.9) Line: 863 Module: ModPerl::ROOT::ModPerl::Registry::opt_otrs_bin_cgi_2dbin_otrs::handler (unknown version) Line: 41 Module: (eval) (v1.99) Line: 204 Module: ModPerl::RegistryCooker::run (v1.99) Line: 204 Module: ModPerl::RegistryCooker::default_handler (v1.99) Line: 170 Module: ModPerl::Registry::handler (v1.99) Line: 31

Thanks!!