Yw! Kitties is tuff. Make sure you set home and range, so it doesn't go off your parcel or sim, whatever. If it does and goes missing, you can check your lost and found folder. If it's not there you can get the id number of your kitty from the Pedigree section (tab is on top of forums or this page) and file a ticket in the support tab up top too.
The kc staff are wonderful and will have your kitty back to you in no time.
If you have any other questions, feel free to ask here or in the kitty chat.