Why I can't open my phonebook , contact history and whatsapp messenger ?

[Soo]

My phone is huawei honor 3c.
Why I can't open my phonebook , contact history and whatsapp messenger ? When I click into these, my phone went blank for a few seconds and then it return to my home screen. Can someone help me to solve this problem? Thank you very much !

 

[the tall guy]

Hi, are these the only three issues you are having. You might want to power your phone up in Safe Mode to see if that resolves the issue, if it does then you'll more than likely have downloaded an app that's causing these issues.