Responses
This is very much the same for many other users. Due to the lag and glitches on the site, and due to issues with reading lists (which are being restored) they turned off the add to list function. They will fix it as soon as they can :) I've attached the FAQ link
https://www.mangago.me/home/mangatopic/21080691/
Thank you very much for clarifying
I've been trying to add manhwas to my 'to read' and 'reading' list as well as ratimg them. But it says that, "The function is currently being repaired and is temporarily unavailable." It doesn't seem to be a problem with other people so I'm checking if this is some kind of error? :0