Hi bonbonpro!
Sorry for such a late response. I'm Andrew and have been helping out Copychaser with some programming tasks.
Would you be be able to check if a log is being generated? You can find logs in your appdata folder, specifically:
C:\Users\[user name]\AppData\LocalLow\Copychaser Games\Speed Dating For Ghosts\output_log.txt
If you could, please send that to support@copychaser.com. That will give us some insights as to what is happening when you run the game and hopefully find a solution for you.
-Andrew