403. That’s an error.

Your client does not have permission to get URL /api/manifest/dash/expire/1593934366/ei/vi0BX7TCNYTZ1wLa1aLoDA/ip/179.61.166.67/id/d1d0e751e58c2923/source/youtube/requiressl/yes/playback_host/r4---sn-ab5l6n6e.googlevideo.com/mh/Gl/mm/31%2C29/mn/sn-ab5l6n6e%2Csn-ab5sznld/ms/au%2Crdu/mv/u/mvi/3/pl/23/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/vprv/1/mt/1593912297/fvip/4/keepalive/yes/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AOq0QJ8wRAIgXXNdLCWLB68weANl1UMOBZlog0iSEmHCO1IytEOGwr8CIAXp6WyUkLY3GHpFCGy9nvqPtKuInI5D_mkTzrQUOgcy/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl/lsig/AG3C_xAwRQIhAMNQbqJKLF2FVl06ZLk_DjCykU0yHoanzvbol8H7Sw7SAiB9_hG1KtPcxajjTjdgZM5fqOTSfnPOx5jCQb0iL6lAjg%3D%3D from this server. That’s all we know.