No, there are quite 15 languages for avast! But here, in forums, just English…
Wellcome! 8)

Well, you will only able to repair an ‘old’ file, the clean ones that you have before installing avast (see http://forum.avast.com/index.php?board=2;action=display;threadid=6567). Can you send the file to Chest?
Which is the name of the file and its path?