hi, I changed my admin language to french, referred to http://support.themeburn.com/topic/add-another-language

I copy them to the corresponding language directory:

admin\language\english\module\shoppica.php
admin\language\english\module\shoppica_banners.php
catalog\language\english\module\shoppica.php

to

admin\language\french\module\shoppica.php
admin\language\french\module\shoppica_banners.php
catalog\language\french\module\shoppica.php

web site functions normally, but i cannot enter admin > Extentions > Modules and payments sectors. when I click on modules or payments, it turned to be blank page. except those two parts under Extensions cannot be open, the other parts of the admin all work well.

all my files are saved under UTF-8 format.