First of all, there is a guide that have a lot of answers: https://docs.google.com/spreadsheets/d/1kk1nVwdcqxsqkysRpLgMoRE0wKDOmMXYfxKpDsBlmas/edit?pli=1#gid=880947664
And about your issue. Go back during the evening. During the day the acolytes are outside and warriors are hunting. While during the evening warriors are outside, you can then check what they are doing and there you will have the option to help the third acolyte.