I have a book in epub format that has clickable table of contents. They show up perfecty in calibre reader and moonreader pro. But in my kindle device, they don't show up. The table of contents page also is not clickable.
I uploaded the epub file here to fix any errors
https://kindle-epub-fix.netlify.app/
And it said "No errors detected. Perhaps there are other errors?".
I converted the epub to epub again using Calibre but still I face the issue. Please help me fix this issue.