Hello,

I noticed a discussion about the same problem on the Let’s Encrypt forum here.

The solution recommended there is the following:

wget https://raw.githubusercontent.com/serghey-rodin/vesta/master/bin/v-add-letsencrypt-domain -O $VESTA/bin/v-add-letsencrypt-domain
wget https://raw.githubusercontent.com/serghey-rodin/vesta/master/bin/v-add-letsencrypt-user -O $VESTA/bin/v-add-letsencrypt-user
chmod +x $VESTA/bin/v-add-letsencrypt-domain
chmod +x $VESTA/bin/v-add-letsencrypt-user

Hope that this helps!
Regards,
Bobby