“Since” or “Sense”

I cannot even believe someone made the “error” of confusing the words, “since” and “sense.” But there it was in an email:

… that has sense been worked out.

I did not quote the entire sentence sense I didn’t feel it necessary. Otherwise, it may have confused your common since. I hope that make scents.

Thanks to @abaggy for forwarding me the email that will mar my english forever.