[imp] Turkish Language

[Cpanelhosting.com]

Hello,

I have searched through the archives and was unable to locate a solution for this.
I am trying to install the Turkish language per the instructions in the documentation. Everything appears to go well except when logging in and choosing Turkish I get this:

Notice: Use of undefined constant IMP_BASE - assumed 'IMP_BASE' in /usr/local/cpanel/base/horde/imp/lib/base.php on line 61

Fatal error: Failed opening required 'IMP_BASE/lib/IMP.php' (include_path='/usr/local/cpanel/3rdparty/lib/php/') in /usr/local/cpanel/base/horde/imp/lib/base.php on line 61


Any Ideas?

TIA