Tartube error 'Sign in to confirm you're not a bot' - beginner help?

Hi, I'm a total beginner with Tartube/youtubedl and I installed and got Tartube working with no problem by following the basic tutorial, there was a playlist of 22 videos I was trying to download, and it downloaded the first 10 with absolutely no issues. However it won't download any more and it is giving me an error whenever I try, in normal or Classic mode.

'Sign in to confirm you're not a bot. Use --cookies from browser or-- cookies for the authentication.'

I really don't understand what to do, or where to enter this --cookies code in Tartube, if that's a thing you can do? I'm on PC and I am signed in to my Youtube account, I don't have a VPN. I saw some people saying there was a 'pass cookies' workaround but also that it could get your Youtube account banned, and I really can't risk that as it's vital for me. And the github links contained in the error message seem to be talking about using the command line, which I'm not because I'm using Tartube.

Can anyone point me in the right direction? I tried leaving it a few days, but it made no difference when I tried again. I was getting the links from Chrome, if that's any use.

I'm sorry if this is really basic, but I have come to this without much background knowledge, just needing videos for a project, any help would be great. Thank you!!