There is a documented issue with some Intel chipsets on Windows PCs that causes Dirac Live to crash. This affects Windows users with Intel CPUs using integrated (built-in) graphics processing. If you have a separate GPU, an AMD CPU, or are on macOS, this shouldn't affect you.
Navigate to your %appdata% folder by opening a File Explorer window and clicking on the address bar, then typing or pasting in "%appdata%".
Go into the DiracLive folder and open settings.ini. (Right click and open with Notepad or another text editor.)
Check if there is a line with the text "softwareRendering".
If it reads "softwareRendering=false", change it to "softwareRendering=true".
If there is no "softwareRendering" line, add a new line with the text "softwareRendering=true".
Save the file (Ctrl+S) and close it.
Open Dirac Live and see if the fix helps.