My Lumia 520 Whatsapp is neither starting/runing

[WPCentral Question]

When I start Whatsapp nothing happens....when I try to uninstall also just nothing will happen and screen comes back to normal, after my confirmation to uninstall it??? Problem for past 2 weeks...I have run it without any problems for more than one year.

Can anyone help me to overcome these issues....

Thanks in advance.

Prasad
India