We're aware of an issue with converting some DOC, DOCX, ODT, and RTF files to EPUB through our Ebook Wizard.
We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.

Knowledge Base

Find the information you need to publish your book, calendar, or photo book. If you can't find what you need in Lulu Community, please visit our Customer Support Page where you can submit a request to our Support Team.