Address and coordinates detection

Hello, I couldn't manage to receive my car address. I tried to follow the docs but got an error: 1 invalid_session. I don't know why because my session is valid and executes other requests. Then I found new docs where was defined to pass gis_sid, I did but the result is the same. I log uid and gis_sid to make sure they are defined and everything seems fine.

https://geocode-maps.wialon.com/hst-api … s_geocode?
    coords=[{
        "lon":27.516643322771575,
        "lat":53.91069937030936
    }]
    &flags=1255211008
    &uid=50935