Killua

It happened to a lot of readers, I went on reddit when it happened to me and there's sadly no way to recover it.
You'll have to rebuild your lists yourself.

oh that happens, one of the annoying things abt this site... it'll come back after a while
i suggest keep a backup of ur lists somewhere

will it really? it never happened in the 6 years ive had my account

ive seen it come back for some users so i thought there was hope..

if it indeed doesnt come back then you could use wayback machine to see if it's screenshotted your profile page in the past.. and from there you can recover a bunch of your manhwas
in future you can screenshot your page on an archive website as well

The Great Reset: Back in late January, a vast load of people descended upon this website. It overloaded the servers causing a massive crash. Much was restored. But unfortunately, the disk that held our lists was irreparable. MGOs developers worked hard, but, alas, they were only able to retrieve your books if you rated or tagged them. Those that were able to be recovered were sent to your Already Read list. You'll have to sort that list as you start to rebuild all your lists.