Well, Lorilay and Mimma thats what we are suspecting.
But as you said Mimma, the client says something different.
As I wrote in my initial post I tried to contact a GM about it.
I asked in #help-and-support on discord: "@Pottu Does the error massage: Your name has been found to be in violation of the naming rules actually mean more than what it says?
Like can it also mean that someone took your name?"
Too which he answered:
"@Hanx No, shouldn't mean that"
Later I requested a private conversation with him where he told me to wait a bit so it might be sorted.
It was a busy night so it is understandable if he was wrong.
So what we are trying to do here is to get some clarification on the matter. From our point of view it looks like some error has occurred which has lead to our characters being flagged for renaming.
Because our names didn't seem to be violating any rules when playing on Elysium.
Also our characters names aren't listed anywhere on old Nost character records. The only causes left is indeed like you say some account from Nost (that aren't listed anywhere) claimed the names.
OR that some unrelated error is blocking the names.