Sorry to hear about all of that! I’m glad your PC doesn’t crash anymore though! Can you provide us with the log file so we can get a better idea what is causing this error? Here are some instructions for retrieving the log file: How do I retrieve Local’s log file?. Specifically you’ll need to locate the file here: Log file location: %AppData%\Local by Flywheel\local-by-flywheel.log
Another thing that will help resolve this issue is to manually update or re-install VirtualBox. Here is a FAQ to walk you through it: How can I manually update VirtualBox?