What does this error message mean and how do I resolve it? That is from console of Google Chrome v33.0, on Windows 7.
Failed to load resource: net::ER
In my situation, the problem was nginx docker container disk space. I had 10GB of logs and when I reduce this amount it works.
Enter in your container: docker exec -it
Go to your logs, for example: cd /var/log/nginx.
[optional] Show file size: ls -lh for individual file size or du -h for folder size.
Empty file(s) with > file_name.
It works!.
Empty your nginx log with > file_name or similar.
Hope it helps