Matchmaking Rules In Effect

Just Wondering, I had guest account at my family Xbox . I moved out last week and bought myself a new Xbox One S. After downloading Halo Gaurdians i synced my data and i saw this message " Matchmaking Rules in Effect for Misconduct" . I checked my message history and i never quit any game. I don’t find any reason for this action. Please share if I can fix this and from where ???

For every player, every playlist says that message. This message is just a warning to let you know to not do things such as quit, idle, betray, etc. It doesn’t mean you’ve done anything wrong.

All playlists were offline… Back on line today.

Thanks and Appriciated.
Regards