Fatal error - no version information

I am new in this application and I´m trying to install a xibo docker. When I write localhost/login in the explorer, this message appear:

“Fatal Error - sorry this shouldn’t happen. No Version information - please contact technical support”.

Please, could you help me about this?


Is it on Windows or Linux?
Which CMS version is it, I assume it is completely fresh installation?

The docker itself is already installed and working fine, then Xibo docker image is also already installed and containers are up?

ie if you open command line and write
docker ps

Does that show the containers correctly up and running?

It´s a fresh Ubuntu 16.04.
Something strange happened, yesterday I installed again and it worked.

Thanks a lot for your comment.