We don’t think this forum will delete the post having URL Links because other users for support are postings as usual. Ok we will check about the issue once and without the url link its pretty hard to figure out the actual issue. Did you try checking by deactivating the external plugins that you are using? Because some times the plugins might have affected the theme.
Let you know if any further issue regarding this topic.
Ok we got your Site URL link. We checked about your issue. The blank links are the Custom Link you created on menu and we found there is no any URL link on those menu item. You cannot create the Custom Link without URL link. May be you have removed the link after listing the created menu item so please at least use a “#” on the URL field on respective Menu Item to solve the issue.