Pennsylvania WeConservePA web service is here
https://mapservices.pasda.psu.edu/server/rest/services/pasda/WeConservePA/MapServer
I am going to use FME to download these layers as shapefile and save to hard drive for further processing.
https://community.safe.com/s/article/notes-on-fme-and-esri-versions-and-compatibility
After uninstall ArcPro 3.1 reinstall ArcPro 2.9, which will work with FME version 2021.2. All error message are gone. I will be succesfully download web service into File-GeoDatabase.