The log file looks OK, but that doesn't really mean anything.
Did you test the book with the Kindle for Android and Kindle for PC apps and an eInk Kindle?
If this is a self-published book, KDP might have simply rejected it, because Hebrew is not on
the list of supported KDP languages.
Also there's an
image file size limit of 5MB per image.
The only way to find out what's really going on is to contact
KDP support by e-mail (select Publishing > Other).