FOSS gamedev and creative worlds

Hi guys, I have been having some trouble with Sapier's animal mod. Whenever I [re]install the mod to Minetest, it comes up with an error in the Lua script. Since I am new to the whole scripting thing, I have absolutely no idea what is wrong with said script, and I was wondering whether there is a way to get rid of this problem by having a tinker with the script. Thanks

Please post this in the animals mod thread.