We don't seem to be getting anywhere here tbh. There would seem to be a problem with the ipad.
Have you closed all the apps? Double click the menu button. How many apps are open? You may need to scroll across to see them.
If the square button on the outside, bottom of screen, is the menu button, when I press that, there are 46 apps across the bottom, I presume that these are all the Apps on the iPad? How do I know if they are Open or not? 
I've just checked, there are 58 square Apps on the main screen, but some of those have other Apps inside them.
If you've double pressed the menu button, with square symbol on it, then that opens the application manager.
Press and hold one of the apps. They will then start to jiggle, and a red " - " symbol will appear. Press this and that app will close. Repeat for all the apps you want to close, and I's suggest you want to close all of them at this stage, unless you are working on anything like email or using safari, finish your work, then close all the apps via the red minus symbol.
The user needs to do this regularly, or the device will eventually seize up and apps start crashing, as you have disvovered.
