Registration Links Go to Different Places

In my navigation links I have a page called Registration at https://christiangayschat.com/register-2/

When you click on the Signup button it takes you to the Create an Account page, also at https://christiangayschat.com/register-2/

However, the Register link in the sidebar login widget takes you first to the Create an Account page, and then to the Registration page.

I don't care which comes first, but I do want it to be consistent. How do I change one or the other please.

Thank you