403. That’s an error.

Your client does not have permission to get URL /api/manifest/dash/expire/1620294113/ei/gWWTYNunMpCd1wKwjbtI/ip/179.61.166.67/id/1ad223b94217c0b1/source/youtube/requiressl/yes/playback_host/r3---sn-4g5ednls.googlevideo.com/mh/vB/mm/31%2C26/mn/sn-4g5ednls%2Csn-1gieen7e/ms/au%2Conr/mv/u/mvi/3/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/1620272111/fvip/3/keepalive/yes/fexp/24001373%2C24007246/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AOq0QJ8wRQIhAMWF-wWB3qv15OSapZ0bXTkd_UTtckndzfvuRxpPCA1pAiA5rgVnGNY-yzPrgFjDaI56xXRE34B40dmdHZcasrxgrA%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl/lsig/AG3C_xAwRQIhANs8VD6khGfcX_xMN8PX9iucTBZzFM9Q8rkR0mu9fcgYAiASgKvK94ivrgC0pZUuVkYdwZd8ZwsbcsKeNU-K6lDZmw%3D%3D from this server. That’s all we know.