There was an unusual alert this evening.
There is a problem with the app WhatsApp. Try to buy it. If that doesn't work, uninstall it and reinstall it.
The phrase is not exact. But, the general gist is the same.. Any thoughts?
I thought WhatsApp was free of charge for the first year and 1 dollar (euro) for every next year. Maybe your year has passed and you have to buy the app. Maybe uninstall it first and then install it again from the store and see if you have to pay for it...