chapters does not exist

I have many chapters in notification, but most of them gave "Content does not exist."
For this pages:
https://www.fakku.net/manga/mama-confession-english
https://www.fakku.net/manga/bitch-stream-spread-english
https://www.fakku.net/manga/leave-everything-to-your-big-sister-english
https://www.fakku.net/manga/reminder-english
https://www.fakku.net/manga/little-magnum-english-1468365109
https://www.fakku.net/manga/locking-horns-english
will they be readble and when?
Thank you.