Can't send life or request life to candy friends

pocho

I am using blackberry keyone I can't send life or request life to candy friends

Sukanta_Biswas

hi @pocho log out from facebook and log in again then your problems will solve . if not solve then reset your app and log in again

pocho

Hello Sukanta_Biswas 
Thank you for your help but it didn't work,
I don't know how to reset app,
Can you please explain how to reset app?