#. TRANS: Client exception thrown when referring to a non-existing RSVP.
#. TRANS: RSVP stands for "Please reply".
#. TRANS: Client exception thrown when referring to a non-existing RSVP ("please respond") item.
#. TRANS: Client exception thrown when referring to a non-existing RSVP.
#. TRANS: RSVP stands for "Please reply".
#. TRANS: Client exception thrown when referring to a non-existing RSVP ("please respond") item.