That's interesting, so it looks like something messed up that file (I really hope it wasn't Plus Porter that did that). Under "=MOD LIST START=", there are a few lines that look different from how they should.
The line "03 R+ P0P05 /CurlyStory/mod/" shouldn't have the "P0P05", it should just have "P05". And the last line, "05 R+ P2P25 /Nemesis/mod/" shouldn't have the "P2P25", it should just have "P25". Try changing those lines accordingly, and see if it still isn't working. And if not, take a look at the text file and see if Plus Porter has been messing with it. I also find it quite curious that the requirement for all of those got changed to "R+", although that won't break the game.
I might also mention that a couple years ago, I realized that the version of the source code I was working with on my Dropbox is actually an older version than the one I have on one of my external hard drives, and it's possible that during the last release or two I accidentally made a release that set the program back with a bunch of bugs that had previously been fixed back when I did that August 2015 release. If none of this works, try downloading an older version of the program and see if that works any better. Both the May and March 2015 releases should be fine.
I look back at this project and cringe at the fact that my methods of version control were very primitive.