Are you serious? Issue with link?
It's a client-side issue. URL doesn't matter.
It's already detailed. You don't need use specified respack.
Client does not have time to download the resourcepack - he's crashing after pressing the "Yes"/"No" buttons.
It's a client-side issue. Btw, I recorded another video, with vanilla mcserver.
https://youtu.be/M_-xCpjecao
Yep. This still happens on 1.12+