Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Try removing the batteries, and leaving the camera on a (dry, non-humid, non-dusty) shelf for overnight. Then put the batteries back in and try the camera again. That may reset the current locked-up condition of the lens assembly, if it is left mounted upon the camera meantime.
Let me know how it goes, please. Thanks.