A post from Carnival on Facebook.
"The Carnival Dream has a technical issue which our engineering team is currently working on. The ship is at dock in St. Maarten. At no time did the ship lose power but there were periodic interruptions to elevators and toilets for a few hours last night. However at this time all hotel systems are functioning normally and have been functional since approximately 12.30am. The ship has full power but is still at dock while personnel continue to work on the technical issue. The Carnival Dream was on a seven-day cruise and is based in Port Canaveral, Fla."