calibre TOC list and mimetype error

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I want know why calibre viewer don't show TOC list.

calibre viewer TOC list is working when I open any EPUB3 files from here

But this file that I made is not working.
EPUB checker only check mimetype.
That also I want to know what is problem with mimetype.

Sorry for my english, but I think you can understand what I want to know :)

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