Hi.
FicBook.net have made some changes and now you can't add or update already added stories.
First change was a while ago, they went from http:// to
https://, but all saved stories still updated and it was possible to add new stories by changing links to old format. But recently site switched to new format completely and now http:// links do not work and https:// ones are not recognized as stories.
Here is an example: old way then new
http://ficbook.net/readfic/2809531 - "'NoneType' object has no attribute 'find'"
https://ficbook.net/readfic/2809531 - "No valid story URL entered"