[ASK] [Whatsup_Trouble]

Since about 2 weeks ago it started.
When the data Connection Disconnected.
I open Whatsup, but when I push the grey Whatsup icon on the corner and push the Connect button. The whatsup wont reconect, i always need to restart the Whatsup App to Connect Again.
Whats wrong with My Whatsup App!?
Iv try re-Install this app, but the trouble still on My Device

sorry for my bad English