I know this is ages later, but in case someone lands here like me (with the same problem as everyone here), I found a different source for my crashes: I had more mods active than poor CK could handle. It seems that with all my ESP-FE's, I'm well over the limit it was designed to deal with. So when CK tried to load more plugins than it was built for, it choked. I disabled all my mods except the one I needed to open, and CK started up like normal again (I'd been using it just a few hours before on the same profile, before I'd apparently pushed it over the edge with new mods). So there's another reason you might be having crashes while CK is starting up. After all, some of us might have a few too many mods.