Silk Test Classic crashes while running a script and reports the error Can't open results file.
While Silk Test Classic is running a script, it temporarily stores results in a journal file (.jou) which is converted to a .res file when the script finishes running.
To solve this issue, delete all .jou files in the same directory as the script. You do not have to delete your results files.
Then restart Silk Test Classic and run your script again.