jamarrett
Hi
The Menu item saving error shows that you already have a menu item with same name.
So the Joomla can not save 2 menu items with same alias.
Kindly change its Menu alias and it will be saved fine.
About the 403 error the server blocking this. If your site has akeeba admin tools extension install it can be from that or you can ask the hosting provider with this error so they allow to save these pages.
