what do i do if whatsapp doesn't work?

[Windows Central Question]

since yesterday, i couldn't get acces to my whatsapp. i unistall the app and install it again. it still the same thing. i can't acces the app to introduce my number and the cod which wil be sent to me

 

[Ryujingt3]

What is the error message? What happens exactly? Can you tell us more?