It happened to all of us back in January. Mangago's data disk crashed. Only stories you have rated and/or tagged were recovered, nothing else did or will come back. All retrieved stories were dumped into your "Already read" list, you have to manually re-add them back where they were pre-crash. You can start rebuilding your lists now.
I see an interesting manga I throw it in the ''I want to read'' bin, and once I start reading one and find it good I have to finish it all before starting another one, also I don't read that often and that's how I ended up with a very long list that's now gone. I never imagined that something like a website's disk would crash. I'm pretty sure other more actively reading people had it worse than me, it's such a bummer really... But hopefully I'll manage make a new list that's as interesting or even better

I had a long list of ''want to read'' titles, I went to check it and I only found 11!! Did this happen to anyone else? *silently sobbing*