Hi there,
Sometimes an mshtml.dll error may happen when your computer's system becomes overloaded or important system files go missing, get accidentally deleted, or corrupted.
The mshtml.dll error can be fixed with special software that repairs the registry and tunes up system settings to restore stability error.
Here is a thread as well which discusses the same issue and you can try out some troubleshooting steps from this and see if that helps you to sort the Issue.
WebBrowser control Faulting module name: MSHTML.dll, , Exception code: 0xc0000005
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/8e41e0e1-9a8c-4955-8c6c-d60f6e5a06d1/c-webbrowser-control-faulting-module-name-mshtmldll-exception-code-0xc0000005?forum=winforms
Fault Module Name: MSHTML.dll, Fault Module Version: 11.0.9600.16432, OS Version: 6.3.9600.2.0.0.256.48
https://answers.microsoft.com/en-us/windows/forum/all/fault-module-name-mshtmldll-fault-module-version/c46f678e-2a22-46dc-acfc-bac3bce1081e
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