How fix "Failed to fetch" when load?

tuyendaa day ago

Untitled.jpg
Please help me (sorry use google translate)
I am a beginner using traccar

  • I use traccar docker + Nginx proxy manage

  • I use google chrome

  • I have been using it for a month, everything is normal, but today an error like the image occurs

Thanks

Anton Tananaev21 hours ago

This usually means your server is down or not accessible.