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Does your opener make a beeping sound at any time?
Does the wall-mounted control panel say 'LOCK ACTIVATED' or does it have a light flashing on it? if so, you may need to deactivate the lock. (That is done, depending on the model of wall control, either by pressing the MENU button, or by pressing and holding the LOCK button on the wall-mounted control for 2+ seconds.)
Can you crank the door up and open, manually, from inside? if not, the door may be either locked, or jammed. Deactivate the LOCK ACTIVATED feature first before trying this, of course. If the door goes up, when you crank it open manually, but makes abnormal noises, or strained noises (creaking, groaning, snaps - I hope not, and if so, cease opening it) then it may need mechanical repair somewhere along its rollers or courses, etc.