Seems like you have some networking issues.
By the way, what's with that white spacing around your screenshots?
does the traccar server need some connection to internet or it can working fully offline? (white spaces only bad screenshots).
Yes, you need internet connection for maps.
And if i use custom local maps too?
You would need to host map fonts locally as well and update the URL we use for fonts.
thanks, can you generally explain how to change url for fonts
You would have to change the source code for it. Alternative is using a vector map via a style URL.
i have offline traccar installation with custom map (xyz)(traccar server have no connection to internet). After adding device its showing "online", but no icons showing on map.