My website is currently down due to an expired SSL certificate, email sending issues.

i have a domain in godaddy and hosting is also there in godaddy.
I have taken the free ssl from cloud flare.
i can send you all the login details
my email is with gmail business
my website home page is not working and we are receiving the emails but unable to send the emails
below is the error message when i am sending the emaiL
the ssl expired so the website went down
Let me know if you can fix it?