Different versions of sources.list

I tried to download something by adding a domain to my sources.list, I didn't know how to save it properly so I closed my terminal and I ended up with a lot of different versions for the same file but I don't know which one should I delete.
I also want to remove that domain since it can't connect to it and it throws an error every time I run sudo apt update.

Here is a screenshot of the various files:
https://upload.vaa.red/2difdt#9f004b...03e91fb1616f88

And here is a screenshot of the URL that gives me an error:
https://upload.vaa.red/2gnshu#4e543a...cee0ee3493b376

Thanks!