Did you start the game with python or with the bash-script? On Ubuntu 22.04 I get same kind of error if I'm starting Stormside.py but if I start the game with ./stormside.sh it works without any problems.
I tried both and got the same error. Since the traceback showed .05 as opposed to the .06 in the directory name, I removed it all and re-extracted it. That seems to have fixed it. (Weird, as I have done that multiple times, so it could be as I have updated my dev environments for other things that some missing Python dependency was met that was causing the error. The error clearly stated it thought that there were duplicate lines in the code, but when I examined the code, that wasn't the case. So, who knows?