I can help with this one too. You need to find your Mansion.gd files. I don't know which it is, so check both. One is under appdata\roaming\strive\mods\aricsexpansion\scripts and the other is under files\scripts where your executable is. Search for snailsbreeding. If it says there are two of them, replace snailsbreeding with snailbreeding (misstype) in both.
Unfortunately, I am still trying to hunt down an error where when you go to next day it does not bring up the daily report. Thankfully it appears your save does not have that one (an error for lines 1282). Btw, here is a working save of your stuff to the point I have it. http://s000.tinyupload.com/index.php?file_id=01714155081716566862