Share button does not show a mail option and that option is not listed in Share preferences. How do I get it back?

When I go to Share menu there is no box for mail. The only boxes available to check are messages, reminders and notes. Mail was there before I downloaded El capitan. Is there something in mail preferrences that needs to be checked to share it? I have checked my other computers and can't find why this happened on this one.

After putting in comand in Utilities I get this responds. "No such file or directory"

And there still is no Mail to check in Extensions. Any ideas?