Remove the ability to download when no paper is there.

[Killerrekt]

In this link : https://papers.codechefvit.com/catalogue?subject=Classical+Mechanics+%5BBPHY202L%5D
if u click download selected, it will download a papers.zip with nothing inside

[Killerrekt]

Also clicking download select when no paper is selected also leads to the same behavior

[atharvaSharma17]

Assign it to me