I followed the installation procedure from sources on Ubuntu 16.04. Everything went as planned at each stage of the process. I opted for installation with Mysql (5.7).
I have checked that Zammad has started well. I made the modification of the nginx configuration file as requested in the documentation.
After opening my browser, I type the url of my site. And there surprise, a blank page is displayed with for only inscription: unknown path. can you help please?