Hello !
I install the game : “warhammer chaosbane”. I try a little, everithing is ok.
So, i donwload dlc. In the classic way : Clik right on the picture, and install dlc.
Since… I can t play.
I have this message : " Couldn’t find ./accesspoint.txt".
Any idea ?
Thanks for all 
i just fixed tthe same issue on my gog version of the game.
find . -type f -iname "*ccesspoint*"
./drive_c/GOG Games/Warhammer Chaosbane/Exe/accesspoint.txt
I added this working directory in the game’s options tab :
/home/powabanga/Games/warhammer-chaosbane/drive_c/GOG Games/Warhammer Chaosbane/Exe
and the game work well