Are you trying to add, edit, or delete an item in the header menu? If so, you’ll need to click on the header and locate the “Configure Menu” button in the left sidebar editor. Click that. Then, locate the menu item you want to edit or delete and click it. If it’s a menu item you added, it will be labeled “Dynamic Menu Item.” From there, you will be able to edit or delete it.
If you want to edit or remove the link from your footer menu, follow the same process described above, except click the footer section first to bring up the left sidebar editor for the footer.
Let us know if you have any further questions.