Screenshot feature of Shutter doesn't work after upgrading to Ubuntu 17.10 [duplicate]
I'd recommend gnome-screenshot if you can not get Shutter to work.
I have used gnome-screenshot for some time and it works before and after the upgrade to Ubuntu 17.10. It does full screen, frames or "select area".
Finally, have you tried uninstalling / re-installing? I know this is a "Windows-esque" solution, but, well, you never know.