Please make sure that you apply all the steps correctly.
1-Download "AutoCiv" mod from the first post of this link: https://wildfiregames.com/forum/index.php?/topic/24649-autociv-mod-less-clicks-more-civs/
2-Unzip it. / I'm using this app: https://theunarchiver.com/
3-Change the name of the folder as "autociv". / it's very important.
4-Go to the mods folder. ~/Library/Application Support/0ad/mods
Here you have two options to find mods folder: