I think the error message is pretty self-explanatory. You have to enable reverse geocoding.
in which file ?
Please read documentation.
thank you anton for the help, I was successful, don't forget to restart the service of the traccar in the control panel. I was frustrated, but after I tried restarting the service, it works
is there anyone who can help me solve this problem :
https://imgur.com/a/yvm2dr5
when i click show address, an error message appears