Hi !

First off, I'd like to apologize, because I am using a whole bunch of different mods (pretty much the whole BZ suite, all of your mods and Timeken ones for starters) so it's entirely possible that I'm wrong by blaming SE. But in any case, it is this very mod that prevents Factorio from loading after today's updates

Here's the error message :

Failed to load mods: BrassTacks/data-updates.lua:370: attempt to index field 'kr-s-c-iron-gear-wheel-enriched' (a nil value)
stack traceback :
BrassTacks/data-updates:lua:370:in main chunk

Hope that's helpful, and good luck if it's up to you to fix that !