My iPhone informate is about to expire?

My iPhone 4S just gave me a notification saying that its formate is about to expire. Here's an image of it:

My iPhone informate is about to expire

What does it mean? Should I be worried? How do I fix it?

All apps have certificates and app permissions. Usually lasting a specific time frame. If the dev does not update the app in Appstore, then the certificate is not update. Hence… You go this message. No worrys. When the day comes, or now, your choice, remove the certificate. IOS will create a new certificate for it.

Only worry if your a delutional paranoid schizophrenic that forgot to take his/her meds. In which case I will say… RUN, THE GOVERNMENT IS COMING FOR YOU!