Here's what happens (sorry for the watermark and bad aspect ratio). I've tried reinstalling Skyrim, Nexus, and SKSE. The mods are all in the unassigned folder because I saved my Nexus mods folder when I reinstalled it. When I click on a mod in my plugins list, NMM instantly stops responding. When a mod is at 100% after enabling, NMM crashes. When I open it again, there is no check next to it in the modlist but it appears in the plugins tab. This time when I reinstalled NMM I activated a total of 58 mods before it crashed and now the issue has returned. I'm running Windows 10 Pro, 8GB ram, AMD A4-7300 APU @ 3.8GHz, 64x, original Skyrim, not Special Edition.