Shibboleth ISAPI Filter warning message

[Franchuk, Vlad]

Hi,

We are using Shibboleth for login to our web application. This week starting Monday (October 30, 2017) our web application having issues with IIS. One or two times a day Application Pool stop and web application returns 403 error message for users. After restarting IIS everything back to normal.

We are investigating this outage issue. Right before outage each time on Event Viewer --> Application I can see the following message (Message 1). Then on Event Log there is another error message (Message2).

Should we make some changes (re-installing, re-registering, update security?) for shibboleth on the web application server? Are those messages mean there is library conflict on our web server?

Thanks,
Vlad

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Message 1

The description for Event ID 7701 from source Shibboleth ISAPI Filter cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

Filter shut down...

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Message 2

The description for Event ID 2100 from source OpenSAML XMLTooling Library cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

error in file permissions or logging configuration: exception creating appender: failed to open log file (C:/opt/shibboleth-sp/var/log/shibboleth/native.log)
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