The image that i use
and my hosting active game is FIVE: FiveM Mod (txAdmin)
hey,
Sometimes you have to restart the server a view times and FiveM too.
If this still not works look if the logo is 92x92 px.
(maybe try to name the logo “logo.png”
and set this in your cfg
load_server_icon logo.cfg
If this is still not working feel free to dm me