403. That’s an error.

Your client does not have permission to get URL /api/manifest/dash/expire/1670668889/ei/-Q2UY66DE4rDkgbs86uYBQ/ip/216.180.104.7/id/9a6f9cb0accddde8/source/youtube/requiressl/yes/playback_host/rr5---sn-q4flrnee.googlevideo.com/mh/1Q/mm/31%2C26/mn/sn-q4flrnee%2Csn-vgqsrnsd/ms/au%2Conr/mv/u/mvi/5/pl/24/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/vprv/1/mt/1670646187/fvip/4/keepalive/yes/fexp/24001373%2C24007246/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AOq0QJ8wRgIhALHLTBlz3V_8zuj5v4dM5NwrUhAN6w1D8KMK5kxrLmiZAiEAvYLD-MBgRYM-giqFGXGdk7f4cVlQkv4ee6tw48xsT_Y%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl/lsig/AG3C_xAwRQIgU_iy7yaBDuB8LTa-0yFBdxW3HjmNz6qG1XSITBWStQICIQC2cMdfIAVNuQpg9QDN5FBmZ_ddodxPJN4JcUBDtdkcAA%3D%3D from this server. That’s all we know.