Are you a mac user? You shouldn't need to download both for either to work (they run independently) but there seems to be a bug where it keeps closing that I can't track down
Viewing post in Love & Legends (Recreation) comments
Is it possible to go into the game folder and find either log.txt, traceback.txt, or errors.txt file? If so, that might be able to tell me what the error is. It used to be a failure with the function to check for updates, but that's no longer in LL_1 so it shouldn't be that.
Otherwise, there's this thread of options to help with bugfixing: /post/16053777
Sorry about all of this. It seems to be an error that doesn't occur if you've successfully opened the game before so I can't test it myself