With regards to the TOC error on Emperor's Domination - Book 13, try to re-download again. I've already checked the source and it displays in google books, microsoft edge, various ebook readers, mobile, etc. and the TOC is displaying correctly.
I'm closing this as a non-issue since there's nothing wrong with the ePub after multiple checks.
It's most likely that there's something wrong on your side. Residual caches and such. Suggest to clean cache or wipe, whatever.