This in from Wightlink, in their own words. Ed
Due to crew shortages the following sailings have been cancelled:
From Portsmouth: 0830
From Fishbourne: 0930
Wightlink would like to apologise for any inconvenience that this may cause. Passengers concerned about their sailing(s) should call Wightlink reservations on 0871 376 1000 (calls cost 7p per minute, plus network extras).