Simple Recycle now depends on nuggets. So you have to install it as well. I think for new downloads it should install it automatically, but not if Simple Recycle was already installed and is updated. I guess that is sth Minetest could fix.
Nuggets originally were part of Simple Recycle but as I want to use them in other mods as well, it makes sence to put them in a seperate mod to avoid bugs and code spagetti :)
Hope you can fix it now