Livepatch enable not found?

I did have the same error message, log files did not help me either. So I did as root:

snap remove canonical-livepatch
apt update && apt upgrade && apt dist-upgrade
reboot

afterwards again as root:

sudo snap install canonical-livepatch 
sudo canonical-livepatch enable **your token here**

output was: Successfully enabled device. Using machine-token: your token here :)

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