Impossible to dowload firmware for my Archer c60 v2, link broken

Hi, I found this pages for archer c60 router:

but when I click on the Firmware OpenWrt Install URL link, I am redirected to 404 error page.
Plese somebody can help me to dowload the right firmware bin to install?

The only 2 firmware about my router model are:
which is the correct one?

What does the links you posted say about Installation procedure?