Essentially, with CTDs, you are on your own. If you're using other mods, it's your responsibility to find a stable load order that works for you. If you're only using JFDLC, then CTDs cannot be diagnosed from the users end. It's unfortunate, and I cannot begin to explain how grating for me personally, but there's very little that can be done about it from your position. It could be a problem in the code, or it could be that your PC cannot handle the increased performance demanded by JFDLC, etc.. For everyone involved - myself, Chrisy, and others - this is a hobby, so we do not have the development tools, time, or resources to fully support major issues like this.
All of this is explained on the Discord. Please, do not report issues without trying to fix them yourself, and in particular without reading and understanding the Discord troubleshooting and f.a.q. channels. It is unfair that Chrisy should have to respond to every already-explained report or issue on my behalf.
If you want to use mods not included the JFDLC installer, *expect* problems. If you experience CTDs, just reload and carry on, start a new game, or if you're unhappy, do not use this mod. As the EULA states, "you use this mod at your own risk!"