403. That’s an error.

Your client does not have permission to get URL /api/manifest/dash/expire/1579939464/ei/KKIrXtePIs-Xkwb0lSY/ip/199.30.49.212/id/4a494555c1952257/source/youtube/requiressl/yes/playback_host/r3---sn-a5msen76.googlevideo.com/mm/31%2C29/mn/sn-a5msen76%2Csn-a5meknek/ms/au%2Crdu/mv/m/mvi/2/pl/21/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/8333750/vprv/1/mt/1579917776/fvip/3/fexp/23842630%2C23860862/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/ALgxI2wwRAIgKh0cpjDBkj0eFOSCJyQT-EXQIEAiytOlIdFiDaimOK4CIBlFLYLJW86StTdzLXOmsE3CmfAjy_6ldWjoSmEPk_nZ/lsparams/playback_host%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/AHylml4wRQIgC04xqAEcV2oXLIDFD9iXThdhps228m0FMjKZ5JxI-pcCIQDjJy_EsvfAJr_9htxHpdDXPOkFoBlbx22QHDWqSVy0xQ%3D%3D&title=Canim+by+munichgirl from this server. That’s all we know.