Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
That problem must be quite annoying, and I hope I can advise you through it to a good result.
First, please tell me, what shows up on the camera's screen, and what does the camera do or fail o do, with regard to Meter Mode ?
(Use the Reply To Expert function to let me know, please.)
One thing to do, towards a fix, is:
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.