u/EquipmentComplex4184

I'm entirely new to using this thing, and new to this site. I just wanted to download some videos and I managed to download a couple but every video I tried after that told me I had to log in. So I tried again using cookies I exported from my browser and I was instead met with this error. My program is fully updated and nothing seems to fix this. I've tried reinstalling, turning off VPN, tried downloading a bunch of different videos all with the same result, waiting to see if the problem would just go away and nothing. Anyone got any ideas?