photoshop 2017 can't read my nef raw files

I really hope somebody can help me. With the old 2015 version I could open my NEF-RAW files from my Nikon D810 without problems. No photoshop tells me the files can't be read, but the camera raw CC is up to date...

What can I do? It is before christmas and I have so much work to do... HELP please...