missing .scs file from freepdk45 ?

[pguerr061703]

Hello. I was wondering if someone can assist. A months ago, we pulled down this freepdk45 PDK for our institution's usage. And the TAs and professors have been using it consistently. But I was told by a new hire that this freepdk45 PDK is missing the .scs model files.

I am not familiar and would like some assistance on where I can find the .scs model files for this freepdk45 PDK.
Any help would be greatly appreciated