How to deactivate licence and activate again on new computer

Hi, I have just deleted the sketchup key as I changed my Mac, as requested by the system. Then activated the license again… but nothing happens…!
I still can not acces my Sketchup files and do drawing.
Regards
Jurg

Hi all, just by luck, I managed to get it going… so do not worry anymore…!
Thanks
Jurg