Try changing the settings to en-us instead of sv-se
and your location to United States. EA have a lot of problems with regional/country settings. I find the US ones work for me.
Once you've logged in you and started a new world you can then change things back to Swedish
Alternatively, try the webworldbrowser for the game with the en-us setting: https://gamecdnorigin.alliances.commandandconquer.com/WebWorldBrowser/index.aspx?langPreferred=en-US