Scheduler has data to send to site "%1", and addresses defined at site "%2" for site "%1", but none of them are available ...

%11Scheduler has data to send to site "%1", and addresses defined at site "%2" for site "%1", but none of them are available for sending at this time.

Solution: If you purposefully configured the addresses this way, ignore this message. Otherwise, modify the addresses' scheduling in the Configuration Manager Console under Site Hierarchy -> %2 -> Site Settings -> Addresses.%0