Running on Windows 10

[tgdbepe4]

All working well until I add a new QGIS Project and try to Generate Service Configuration. Any idea how to fix that?

INFO: Config destination: '/srv/qwc_service/config-out/default'
INFO: Searching for projects files in /srv/qwc_service/config-in/default/qgis_projects
INFO: Processing /srv/qwc_service/config-in/default/qgis_projects/Countries.qgs
INFO: Written to /data/Countries.qgs
INFO: Searching for projects files in /data
INFO: Skipping automatic thumbnail search (qwc2_base_dir was not set)
INFO: Adding project /data/Countries.qgs
INFO: Skipping project /data/qwc_demo.qgs
INFO: Downloading GetProjectSettings from http://qwc-qgis-server/ows/qwc_demo
INFO: Downloading GetProjectSettings from http://qwc-qgis-server/ows/Countries
CRITICAL: Could not get GetProjectSettings from http://qwc-qgis-server/ows/Countries:
b'Layer(s) not valid\n'
INFO: Writing 'ogcConfig.json' service config file
INFO: Reading 'qwc_demo.qgs'
INFO: Using WMS GetMap to generate thumbnail for qwc_demo
WARNING: Skipping theme item '': Could not get capabilities for /ows/Countries
INFO: Copying 'index.html' to tenant dir
INFO: Skipping JSON schema check for MapViewer
INFO: Writing 'mapViewerConfig.json' service config file
INFO: Writing 'featureInfoConfig.json' service config file
INFO: Writing 'printConfig.json' service config file
INFO: Writing 'searchConfig.json' service config file
INFO: Writing 'adminGuiConfig.json' service config file
INFO: Writing 'dbAuthConfig.json' service config file
INFO: Writing 'elevationConfig.json' service config file
INFO: Writing 'mapinfoConfig.json' service config file
INFO: Writing 'permalinkConfig.json' service config file
INFO: Reading 'qwc_demo.qgs'
INFO: Writing 'dataConfig.json' service config file
CRITICAL: The generation of the configuration files resulted in a failure
CRITICAL: The configuration files were not updated!
INFO: Collecting 'ogc' service permissions
INFO: Collecting 'mapViewer' service permissions
INFO: Collecting 'featureInfo' service permissions
INFO: Collecting 'print' service permissions
INFO: Collecting 'search' service permissions
INFO: Collecting 'adminGui' service permissions
INFO: Collecting 'dbAuth' service permissions
INFO: Collecting 'elevation' service permissions
INFO: Collecting 'mapinfo' service permissions
INFO: Collecting 'permalink' service permissions
INFO: Collecting 'data' service permissions
INFO: Writing 'permissions.json' permissions file
CRITICAL: The generation of the permission files resulted in a failure.
CRITICAL: The permission files were not updated!

[tgdbepe4]

It has to do with the shape of the QGIS file. I have to further inverstigate what is possible and what not.