Basically, "Access" appears on a digital camera screen when the camera is connected to another device (computer) and when the devise is accessing the pictures/video on your camera. It may also mean that the camera is trying to get access to the memory card and for any reason it fail.
I think it may be a memory card issue.
You should start by:
- Disconnect any device from your camera
- Removing the memory card.
- Removing the battery for a minute.
- Put the battery again and try to turn on your camera for a few minutes with another memory card or with no memory card if you doesn't have a second one (I see you have an internal memory so that your should be able to take a few pictures with no memory card)
By the way you should try to put your memory card in a computer to backup your last pictures. If you are able to do that you can format your memory card by the same occasion.
Let us know if it change anything.