Can you check that you haven’t turned your WiFi off by accident? Should be under Zorin menu -> Settings -> WiFi (or something like that, I believe you’re on Gnome and it has been a while since I was on Gnome).
Could you also check Software Updater -> Settings -> Additional Drivers?
Zorin recognizes the Rtl8821CE, so I’m perplexed. See: Wifi rtl8821ce driver installation - #34 by whitecloud