Contingent Liability in Group scenarios

Hello,
in doing the Viagem Co group consolidated statement of Profit or Loss and calculating goodwill on acquisition of a subsidiary there is a mention of a contingent liability in relation to a group.
It rings a bell from one of the lectures, but I cannot recall what it was and unfortunately I cannot fnd it anywhere. Could you please remind me what it was? I only seem to remember that it was supposed to be a current liability?

I would appreciate your help.