05-10-2015, 04:56 AM
That's Minecraft being weird, not MCServer.
If you didn't log in for a while with your Minecraft client, or you started a new client while you had the old one running then Minecraft doesn't want to log in.
If this keeps happening then you can turn off the authentication in the settings.ini (offline mode in Vanilla).
If you didn't log in for a while with your Minecraft client, or you started a new client while you had the old one running then Minecraft doesn't want to log in.
If this keeps happening then you can turn off the authentication in the settings.ini (offline mode in Vanilla).