5.9 version

5.9 Service starts normally
I use systemctl status traccar to see that the status is OK
But when I went to ip:8082, the page showed 404-Not Found

best wishes

I upgraded directly from 4.15 to 5.9

What troubleshooting have you done so far?

I don't see any error messages in either the startup status or the log, so I don't know what the reason is

Have you cleared the browser cache? Have you checked browser console for errors? Are you using the default configuration?

Maybe I know why, I used version 4.15 of default.xml directly in version 5.9
When I use the default 'default.xml' file, I can access it normally
Maybe I should combine the two versions of the file, right

Thanks

You should reapply changes that make sense in the new version.