(Just a note to start off with: This is the writer of Lads in Distress / Catfish Crew. I'm just using this account for our new VN studio to answer comments because I have added this account as a contributor to LiD project, and it's easier to monitor all our games under both CC and EG from this account alone.)
Hello! I must apologize for the extremely late reply >_< I don't log on the CatfishCrew account anymore as I'm usually on this EG account to keep track of our new games under this account, so I didn't see the notifications about new comments.
If you happen to still have our old NaNoRenO version downloaded, I believe you can try to workaround that problem on Mac by right-clicking the game file and clicking Show Package Contents > Contents > MacOS > Lads in Distress game file again. It should also bring up the terminal, but the game should be able to run properly then. I believe this issue is because the NaNoRenO version of LiD isn't compatible with the new MacOS updates, but who knows ;o; Anyways, that's one workaround we found, but we would definitely suggest you to forget the old NaNoRenO version and just try our new demo for the full version which we recently uploaded for the full experience! Haha.Thank you for your interest in LiD again! Really sorry about the late reply ;o;