Solved it guys, did some googling on that SSL error and found another post here:
In
/var/unbound
Delete
dnsbl_cert.pem
unbound_control.key
unbound_control.pem
unbound_server.key
unbound_server.pem
Reboot and run force update/reload.
DNSBL now up and running. Thanks for the help in diagnosing guys.