[GeoNetwork-devel] GN 2.8 geoserver error with maps not displaying

We have installed GN 2.8 on a server running Tomcat. I updated the config-gui.xml with our hostname and am running into the following geoserver error such that our maps are not displaying. Everything else seems to work fine and it works great via localhost connections >

org.geoserver.platform.ServiceException: Could not find layer gn:ne_50m_boundary_da

I saw a posting where someone else was getting the same error on the French site but the resolution was lost in the google translation for me. Can someone tell me specifically what needs to be changed/fixed to make things work?

Thanks!

Kathy