Error message and Solution (Profile-related)

You were unable to join the party because your sponsor profile isn’t in the game.Sponsor profile must be joining in the game if you are going to join in with the guest profile.
A guest profile cannot play the game unless its sponsor profile joins together.

Moreover, the sponsor profile quits the game, the guest profile also leaves the game.

Because of failed to create the guest data, you were unable to join the party. Check network status and attempt to connect to the service later.
Network connection on the console may be malfunctioning. Please check the network connection status and try again later.