I couldn't add smarterfarmers because it requires moonlight, something I couldn't find for the minecraft version I was using for my modpack, so I removed smarterfarmers. But the game still crashes on boot saying smarterfarmers requires moonlight.
It's not in the list anymore, the files aren't even in the folders anywhere.

This isn't useful at all. I need a latest.log. also use a launcher to install mods

I was using a launcher. And sorry I didn't provide a lot, I found that apparently moonlight was installed saying it wasn't. What helped was uninstalling moonlight and then reinstalling it and that worked, but so far I haven't gotten the smarterfarmers mod to work. Can't check it right now though.