1. Install Ender's client
2. Download admiral-kjol manually
3. Run Ender's client until you crash
4. Go to [user]\.salem\cache\res\gfx\borka
5. Use the admiral-kjol you downloaded to make the three files in the picture (Copy the file three times, rename them as shown. I don't know which of the three files fixes it, just that they do.)
6. Run the game. If it still crashes, copy your [user]\.salem\cache folder to [user]\Salem, overwriting the empty cache folder there.