Sorry, the initialization of the flip book failed. Please make sure that the files exist.

I received a error message while visiting the flipbook page in my website: "Sorry, the initialization of the flip book failed. Please make sure that the files exist", what's the problem? How to avoid this?

If you uploaded your created page-flipping eBook online but received this message when you visited the index page, this might be caused by below problem:

You haven't uploaded all output files online, including HTML, SWF, "files" and "mobile" folders (if you have made Mobile Version while outputting), so you just need to upload all files again.