Error when you rename language

[crisweiser]

When you rename language trough the admin, the folder inside languages folder does not get renamed, causing an require_once error because file is not found.

[3glow]

If you don't change folder's name ...
for example: you rename language name file from admin side (was "en" and you change on "pl")

• you must change name of folder with lang files on ftp server too:../trellisdeskcatalog/languages/en
  Name in the admin panel must be the same as name of the folder, so now should be:
  ../trellisdeskcatalog/languages/pl