My Name is Suddenly Profane
We have seen a few reports of players unable to create/join new games if at some point during the session they tried to create a game with a restricted or reserved name. This is an issue that is being investigated but in the meantime logging out and closing the game client the relogging in should solve the issue.
Now beyond that, we do not lock individual characters on an account for any of our games. If we were to take action against an account for any sort of policy violation it would be against the entire account.
I did not see any restrictions on your battle.net account or for the game so any issues you are experiencing are likely a bug or a technical issue.
The name restrictions for character creation do change over time. So it is entirely possible a name you used previously may now be restricted when creating a new characters. No one here can address naming restrictions or remove a word that you feel should be allowed from the list. You would need to make that suggestion on the general discussion forums.
But as for the character you cannot access that is something we and the community here can try to troubleshoot. As that is precisely what this particular forum is for.
Restart the client and retest creating/joining a game with the character that was “locked”
If the issue persists reply back with the exact error message you get when trying to access the character or create/join games and we can dig into that further with you.
Copied word for word from the official Diablo II: Resurrected forum. Read the whole thread — and reply — on us.forums.blizzard.com. Get an alert for the next one