It's not a technical fault, it's because Sports Interactive doesn't have the rights to include the Germany national team (and the Japan national team) with real players. However, if you go to Program Files (x86), then click on Steam, then steamapps, then common, then football manager 2012, then data, then db, then 1220, then Inc, then all, then delete all the files there. I've been able to get the German team, but not the Japanese team, for some strange reason.
I hope this helps.