Diablo 2 characters deleted

So i haven’t logged on my account for multiple months and i found out that like 8 or 9 of my characters were deleted! How is that possible i thought that expired characters are never deleted??

Also i can’t enter any games with one of my characters it says “Unable to enter game”

Hello Ryze,

With regards to your characters, this article may shed some answers.

Ok what about my character that can’t enter games anymore?
“Unable to enter game”