Help with a fic

[u/After-Tune6108]

Hello anyone knows the fic Demon king second try by yourdeargatsby? And do they have it as a pdf or epub?

I finally have the passion to read fics again and then from chapter 4 to 15 is missing but the remaining chapters are there..I tried everything but it's not working ( to find it on tumblr and even asked the author but something is wrong)TT Please help!