Date Shortcode Not Working

I’ve had the [oceanwp_date] short code on our site’s footer for some time and I’m sure it used to correctly put the year next to our copyright. But I’ve just noticed that the shortcode isn’t working. Instead of “2019”, it’s actually showing the shortcode itself. i.e. “© [oceanwpdate]”

Any suggestions what could be causing this, assuming it’s just broken for me…

Thanks!