If you use Windows 10 and you didn't disable its updates then you could got an update KB5000802 pair days ago that breaks LibreOffice work. If your LibreOffice crashes or doesn't print now, then:
- Delete that Windows update KB5000802
- Delete LibreOffice, include a user profile from C:\Users\User_name\AppData\Roaming\LibreOffice
- Reboot Windows
- Reinstall LibreOffice
If these steps didn't help, please write a comment here. Thanks