It's really strange. It's not really heavier than lffg. But it's just black screen? Because at the start there is a black screen for a few seconds...Anyway, maybe you can try downloading this savefile https://mega.nz/file/7PpADLZI#mrdFztsVQqBxvlUR0gNTEusx6m5sV4BdXw8QSCU-rKo and put it into -> games/saves/ and try to load it. it's just at the start of the game and you can see if it works loading a save