Stacks upgrade - NCD Photo not working

Silly me. I have upgraded Stacks, and published, without backing up… and non of my NCD Photo pages work properly.
Is there a way to revert to the previous version of Stacks while they work out the bugs?

Thanks

First, I would contact both Yourhead and Nick Cates with the issue. This will be sure to get the issue looked at.

You can get older versions of Stacks here

Yes, absolutely, I have done so !
Thanks for the link!!
I reinstalled the previous Stacks, and the previous version of Photo, and my Galleries are back!