Locate the envelope under your Sent folder and use the "Correct" feature. As long as no action has been taken (most likely cause the email address was incorrect) then you can select "Correct" under the right hand menu dropdown, update the email address and Correct. This should send a new notification to the Recipient. You could also hit Resend.

Here is an article on "Correct"...

https://support.docusign.com/en/guides/ndse-user-guide-correct-documents

Can I change it if one party has already signed and the one that had the wrong email needs to sign

Yes, you can "correct" the email address of the Recipient who has not yet signed.

Called in. I did not see that Correct button so I thought it was not an option after sending it out. They added the button so I could make the edits

I am offered no Correct button.  I need to change the email address for the next recipient whose signature is needed - but Correct isn’t offered as a choice with the envelope.