My iphone won't load iTunes or notes?

So I click on notes/iTunes and it shows the iTunes background for about 2 seconds, then before it loads, it sends me back to the home screen. I have done a hard reset, and put it on charge until it was 100%, I have downloaded new apps, and my phone is not jail broken, and does not have any sketchy apps or weird Japanese apps - does anyone have any ideas for what I can do to load up these apps?

Restart it

Reset it by holding down both buttons. If that doesn't work reset all settings. It may need to be restored as it almost sounds like a software error.

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