//As a Wikisource user, I want to see helpful messaging when I experience ebook errors that tells me 1) that there is an error, and 2) what I can do about it, so that I can successfully download a book or pursue relevant next steps.//
[[ https://www.figma.com/file/l2WwBfJRXAQED1Cn7gTxpW/Wikisource%2FWSExport---Errors?node-id=0%3A1 | Link to Figma examples ]]
**Acceptance Criteria:**
* When a request for an ebook export results in an error for a user (i.e., both via download button & side-links -- but preference for download button, if only one), the user should:
** Be redirected to the Wikisource Export page (if they are not there already)
** Display "Download failed. Learn more." as default message in the error header
** Current colors & general design for error header can remain
** If possible, display a customized error message based on the error type that is experienced by the user
*** Note: This is TBD based on discussion with engineers on how much information we can share based on specific error vs. a more generalized message to cover all cases. This may also be explored in a separate ticket.
** If the user clicks on the "Learn more" link, the error header will expand & provide recommendations on how to download the book again, which will be written as follows:
*** Please try these steps if you encounter an error:
*** 1. Try to download the book again.
*** 2. Try to download the book as an EPUB file.
*** 3. Check the box in "Options" to remove credits.
**Visual Examples:**
{F34153732}
{F34153731}