My app sometimes do reseting , I looked error log , error message:
A process serving the application pool encountered a fatal error while communicating with the Windows Process Activation Service. Process ID: '9876
How can I do this error
I would recommend using this blog post, https://blogs.msdn.microsoft.com/parvez/2016/08/06/iis-application-pool-crash-and-debug-diag/ or https://support.microsoft.com/en-us/help/919789/how-to-use-the-debug-diagnostics-tool-to-troubleshoot-an-iis-process-t, as a starting point to capture more information related to the error.
Do you have any other information that could be useful to debug the issue?
Let me know!