How did you change it?Can't play this... started the game, changed the english unrated, new game, chose my name a few screens later it just blocks.
it shows some text on white or black screen and when it reach the first dialog - "blablabla", it just get stuck, can't continue, i think i'm supposed to see something as well, but it's still white screen.
I'm on linux
If you want to add a new language zip you add it to the languages folder, start the game and then press the flag up in the top right corner.
To me it sounds like you deleted english, added the new zip and then tried to play without clicking anything. You never have to remove the English zip.