User blog comment:Hishamstein/I have problem in editing list of chapters/@comment-24059483-20180202202657/@comment-32818639-20180203051606

I restored the code of the "List of Volumes and Chapters" page back to the standard. To (properly) add a cover on that page you have to upload an image file named, for example, "Volume35cover.jpg" or one that follows this pattern (depending on the volume number).

So you can ask a administrator/moderator to rename the file or you can reupload the image by clicking 'Replace'.