@serhii-leshchenko & other eclipse-che users - I configured eclipse che and unfortunetly I see an absolute blank page when I use the URL after this step https://www.eclipse.org/che/docs/che-7/installation-guide/installing-che-on-google-cloud-platform/ (Install Che on Google Cloud Platform)
error picture - click to see the image blank screen dashboard picture - click to see the image
I found someone similar facing this but the tips and tricks were not useful Getting 404 error on Eclipse che-dashboard hosted on GKE
All the URL's work i.e. Plug-in Registry, Identity Provider URL except the dashboard url https://che-eclipse-che.XXX-XX.com