403. That’s an error.

Your client does not have permission to get URL /api/manifest/dash/expire/1643265229/ei/bOjxYYKSPNGp7gOryKeIDQ/ip/179.61.166.67/id/4a8e784a05646a9f/source/youtube/requiressl/yes/playback_host/rr4---sn-5hne6nsz.googlevideo.com/mh/TW/mm/31%2C29/mn/sn-5hne6nsz%2Csn-5hneknee/ms/au%2Crdu/mv/u/mvi/4/pl/26/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/vprv/1/mt/1643242420/fvip/4/keepalive/yes/fexp/24001373%2C24007246/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AOq0QJ8wRQIhAPY2qbttWT-LhklgkM15Rz56OQTWG_adDHtQv7kSVUvaAiACGGOEqv9Oz0fl2EXFNXHU5pXMSj7wtViEVYmdQ_4AsQ%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl/lsig/AG3C_xAwRQIgdJvrbpu5uCCQqRusZ7oi27bzLqibAwAm4ezo_K0AQzUCIQC6XUuvWVBh3yNtUP-jHMtxS-C4rFfT_EvSYihCFnVhyQ%3D%3D from this server. That’s all we know.