[Vieni]

Hey everyone,
This message started to pop-up in my server console recently.
I know how it can be caused when there's a name in this message, but in this, there's no name.
Soo, my question is, if it is not caused on a player(there's no name), how can it appear?

SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on SZ_GetSpace: overflow on

I was the only one player on the server.