Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
I think that, unless your camera is 'broken' and in need of service-repairing, it might be that its functions are crippled by an inadequate battery that has aged somewhat.
Rechargeable batteries, eventually, all fail, either by not delivering enough power, or by not providing enough voltage to power the device they supply.
In this case, picture-taking and image-storing may be impossible owing to inadequate power from the battery.
If the charger is of a type that plugs into the camera, then try the camera with the charger plugged in to it. If the camera works fine that way, then your battery (or batteries) are indeed suspect and should be replaced.
(And if that is the case, then the replacement battery needs to be charged up for 6+ hours before its first use, owing to its having been on a shelf for a considerable time.)
Let me know what you think, please, since you are on the scene as it were, and know the history and age of the batteries you are using.