perhaps you may spending energy in different way and help me with my NEM wallet under win64 problem in vbox which can's start NCC, NIS is working (booted) but NCC not.
Would appreciate some guide
When checking state in webbrowser it displays: NIS_ILLEGAL_STATE_LOADING_CHAIN
Its just my guess and I'm not so good at these tech things, but I think it means your database is corrupt.
If so here is how I would fix it. First, always make sure you have your private keys backed up, and then secondly your wallet. Go to C:\Users\%user name%\nem\nis and delete the database in that folder (or you can just delete the whole NIS folder. no big deal). Then restart and sync a chain from scratch and see if that works.