Free-Dawg Said:
"Supplemental Update fixes nothing. Still crashing after screen-saver idle. Reboot has happened twice since the supplemental update was applied."
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The Ultimate Solution...
Reinstall the macOS Anew:
I. If it applies: Back up your Mac with Time Machine - Apple Support
Then...
II. Reinstall the macOS Anew:
- Boot: into Recovery Mode.
- Open: Disk Utilities
- Delete: the partition
- Reinstall: the macOS
Once Installed Anew...
III. Reinstall All the Software:
- Use Migration Assistant to move Apps a Files back in.
- Ask developers for new software keys - but contact the developers only --- none other --- or you may end up with malware and spyware installed.