@Caio-Kenup I solved this problem including ^ just before &. So, as an example, I changed
start www.youtube.com/watch?v=dQw4w9WgXcQ&autoplay=1
to
start www.youtube.com/watch?v=dQw4w9WgXcQ^&autoplay=1
I believe that it will works to everybody that has a URL with character "&"