Hello,
As this is appearing through the Menu, so you need to go to Dashboard > Appearance > Menus > there edit the Menu that you have on the said location > under the Menu, edit the respective Menu Item > and there you can update the link.
But right now, you have added the Page in Menu Items so they are picking up their Page URL.
If you want to have a Custom Link then we would suggest you to use the Custom Link there under the Menu > and then you can have the option of updating the Link for that: https://snipboard.io/wcWOBY.jpg
Best Regards
.
