Apple iPhone SE all apps not working
Have a third generation Apple iPhone SE, all my installed apps including Banking, WhatsApp, Weather, everything are not updating, if I open an app it just sits there doing nothing, Maps knows my location but is not usable, even apps where I have downloaded information such as Amazon Music will not open. I can send and receive text messages and make phone calls, when we try and call the number it goes to voicemail as busy, completely lost here, any ideas.
iPhone SE, iOS 18