Hi Mboobma, welcome to MR

!
We have special subfora here that cover all aspects of ebook making. I'm sure you will get helpful advice when you'll post your problem there.
Workshop:
https://www.mobileread.com/forums/forumdisplay.php?f=178
Epub:
https://www.mobileread.com/forums/forumdisplay.php?f=179