Elicencer was was in laptop bag when stolen

Hi there all ,i am new to there forums ,so i apologize for the silly question,how do i go about obtaining a new elicencer ,and what sort of actions do i need to follow to get my Cubase studio 5 to run again, :question:
if anyone can direct me on the right path i would greatly appreciate it
with thanks
Acrux

https://www.steinberg.net/en/support/knowledgebase_new/show_details/kb_show/usb-elicensersteinberg-key-details-tips-and-troubleshooting/kb_back/2020.html