resorep isnt that hard to understand, technically the newest version makes many stuff easier in my oppinion, you just need to know which application nier has 32/64bit, if 64bit then choose 64bit for the exe. then just place the files into the modded folder and thats it just start game and try self-destruct if you see any changes (i cant test because i do not own nier automata for pc), only have for ps4 XD if tihs isnt working then i dont know, maybe reinstall java again or delete the current resorep and download newest version
edit: also because, crafted-lightning's harley quin wet mod work perfectly for me so maybe u just mess up things XD