With CodeX rapidly in-development, now allowing developers to properly edit the game, I will soon begin a rework of the whole project once new features are released. Excited to share more in the coming months ahead!
Found the issue, Rockstar made new updates to the popzone file, but due to the fact the mod was using the outdated file, it was causing the game to crash. An update should be out soon to address this, sorry for the wait folks.