it show : Error installing package (Error: Clean Directory Failed)
how can i fix ?

hi
try uninstalling the patch assuming its on game: http://www.voobly.com/gamemods/mod/631/v15-Beta-R4
reboot, enter a lobby and voobly should install the up to date one.

ty kitt , i had already download patch v1.5 R4 successfully
but i have another problem now
when i play a game , it show : Language files not found ! (like fig.) T_T
how can i fix it ?

i had followed all steps in the article, but still not solve my problem.
it still show : Language files not found ! T_T

hi
i dont know what language you are using but there is a selection of language files here: [You must login to view link]