Hosting advanced cron for Aegir 3
After discussion with omega8cc, and a bit of testing, the answer is that advanced_cron is not any more compatible with Aegir 3. It is also merged into BOA (by omega8cc) in their core, and it is not back compatible with stand alone Aegir.

There are two options:


port it to work with standalone Aegir 3
use crontab and wget / curl to trigger cron on site