I don't know how to access File Conflicts, and I don't know if it would help if the issue isn't with SMAPI, but with Vortex itself. Before redownloading SMAPI, it at the top of the load order and everything worked just fine. However, now that it's at the bottom, the game won't even launch. I need to get it back to the top of the load order, but the only way that I know how to do that without the Plugins tab is to uninstall and reinstall all the mods I already have. I'm wondering if there is another way to change the load order besides that.