1- Yes, I've tested with some browser in different computers. The Android APP Shows the same error.
2- What details I need to see or check?
Error messages, stack traces, API requests if they're failing.
It looks like you have multiple issues in your configuration. What have you changed in the config files comparing to the defaults?
Yesterday I updated the v4.12 to 5.3 but the traccar.xml file is the same.
What changes do you have in both configuration files comparing to the original files that come with 5.3?
I got the same error last saturday. The server is 5.8 and it was working ok for several months. No upgrades or changes done on configuration file. The error showed up at the login screen itself.
A complete reset (mysql, nginx and traccar) fixed the problem
Since update to 5.3 (from 4.12) the advice: "NetworkError when attempting to fetch resource" appears at the botton of the window in the web (with some browsers) and in the android app.
Do this also happen to someone else? Do you know what is the problem that generates it and the solution?
Thanks