AU Lab crashing out of nowhere.

that is a segmentation fault -- references to an area of memory that is not owned by any User Task. It appears something tried to access location 0.

This is very characteristic of third-party anti-Virus software. Are you running any of that? if so, it is protecting you ... against its hallucinations. To stop the crashing, remove the anti-Virus software. It is not helpful on your already well-protected Macintosh computer.

There are a very few reports of Macs cleaned "so thoroughly" by that junk-ware that they needed a MacOS re-Install.

If you can find a Kernel panic report in this directory:

/Library/Logs/DiagnosticReports

interesting reports are named with date&time and end in .panic

Please post it in its entirety using the "additional Text" icon in the report footer:

other types of reports are interminable and have all the useful info in the first 20 lines, if there is any at all.

If it did not take out anything more than that one App, you may need to contact the Maker for help with that.

They are likely to tell you to re-Install macOS to be sure it is not corruption in MacOS causing the problem. You can do that as long as you do not deliberately ERASE the drive. It will, by design, leave all your files and installed Applications alone.

That said, it is always Prudent to have a Trusted Backup available if things go badly, such as the drive dies in the process of replacing the over 350,000 files that comprise MacOS.