When I send a link of the form it still has the original title from the previous form?

Please try updating the Page Title in the Form Settings. Here's a guide: https://www.jotform.com/help/373-How-to-Change-the-Page-Title-of-the-Form.

If you are still having issues, then please let us know. May we know where are you trying to send the link to? Are you trying to share it by email or on Facebook?

Thank you.