@jonashemmet
To fix this, please close the game and delete the BitRaider folder in your installation folder, which by default is located here:
For 32 bit Operating Systems - C:\Program Files\Electronic Arts\BioWare\Star Wars - The Old Republic\
For 64 bit Operating Systems - C:\Program Files (x86)\Electronic Arts\BioWare\Star Wars - The Old Republic\
When you start the launcher again, it will redownload this folder and repair the files inside, and you should be sorted.
Once done, if you still have issues, you can use the LauncherRepairUtility here:
http://cdn-patch.swtor.com/patch/LauncherRepairUtilityD2.0.10.exe
