Read below posts and FAQ
"Where are my lists?"
"Why can't I receive any updates?"
Click on this link to get explanations:
https://www.mangago.me/home/mangatopic/21102909/
tldr:
Everyone's lists are getting back. As of now, marked stories before and until 2021 are already getting back in the lists. If you marked stories any time after that, you'll only have to wait for a while more.
Please remember that there are millions of users using this website!! Have patience and trust in the mods to do their thing
Thank youuu!!
Do you guys know why all of the manga or manhwa in my "want to read list" disappear all of the sudden?? T^T I used to have 800+ then it became 13