Hi! You can consult the troubleshooting sections on the website:
For Windows:
https://lucidlust.net/wiki_pages/windows_troubleshooting
For macOS:
https://lucidlust.net/wiki_pages/macos_troubleshooting
For Linux:
https://lucidlust.net/wiki_pages/linux_troubleshooting
If you still have problems after following the guide, please tell me, and I will make sure to do everything to get you to play my game haha! Merry Christmas to you! ♥