Hi @Charles_I
this isn't the problem. You hit another limit:
You have created 6 certificates today with the same domain name set
webmail.zoowoods.ca
www.zoowoods.ca
zoowoods.ca
The limit is 5 identical certificates per week.
And: This error message
is wrong. This limit is lifted to 50 certificates:
So you should check if you can use one of these 6 certificates created today.