New version problem

Starting my second pc today 02. july eM Client came up with “a new version available”. I said yes and ended up with an english version, and all contacts lost!! Being Norwegian I want that language, and I want my contactlist back. How do I get the previous version back?

Hello John,
Norwegian translation was not finished for the final release yet.
It will be included in one of the updates.

Regards,
Olivia