Language stuck Assasin's Creed 4

Hello everyone!

Well... I played AC4 for a couple of hours now and I like it a lot, well, I changed the language some minutes before I went to Naussa (The first time) (Is it called like that?), because I wanted to hear if the shandys are better (Or even worse.). Well, I forgot to change it back, so now, I went to Naussa and the voiceover is stuck in english, I can change it back to german or whatever language I want, but nothing changes.