embed VLC in form , LOGO problem

Hello guys, i have a iptv player all is well but i want to put a logo into stream and im using the method like this but its not working.

  Form2.AxVLCPlugin21.video.logo.enable()
        Form2.AxVLCPlugin21.video.logo.file("PNG-URL")
        Form2.AxVLCPlugin21.video.logo.opacity = 255
        Form2.AxVLCPlugin21.video.logo.Position = "center"

then i open the player and no logo or something, just my stream without logo

everything is working fine except this, what should i do ?

thanks in advance !