403. That’s an error.
Your client does not have permission to get URL /videoplayback?itag=22&quality=hd720&type=video%2Fmp4%3B+codecs%3D%22avc1.64001F%2C+mp4a.40.2%22&key=yt6&pl=42&source=youtube&sparams=dur%2Cei%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cusequic%2Cexpire&initcwndbps=316250&requiressl=yes&ratebypass=yes&usequic=no&mime=video%2Fmp4&ipbits=0&mm=31&mn=sn-25glene6&dur=385.799&mt=1517206236&mv=m&ms=au&ip=2001%3Abc8%3A3440%3A9600%3A%3A38&lmt=1516337620247923&ei=HrtuWte4EIi4Vb_2iQg&id=o-ACny5vZHILCHobaMJfI7ro0G4QjQLpiDqpNYHQpl-Xxn&expire=1517227902&signature=B31031E8C99F81BE5BA6E810B8A29147253A016BBA6.A3D01539DB1E9D7411C3F00D3C59F46EAF3E1AC1&title=%C3%91ejo+%E2%9C%96+Jon+Z+%E2%9C%96+Ele+A+El+Dominio+%E2%9C%96+Jamby+EL+Favo+-+Se+Te+Hizo+Tarde+%E2%8C%9B+%5BOfficial+Video%5D
from this server. That’s all we know.