We see an occasional blog owner, having renamed a blog to a new BlogSpot URL, reporting in Blogger Help Forum: Get Help with an Issue that the Pages gadget stopped working. I changed the URL of my blog, from "myoldblogspoturl.blogspot.com" to "mynewblogspoturl.blogspot.com". All of the links are working fine - except when I click on a pages link, I get Blog not found. Sorry, the blog you were looking for does not exist. However, the name myoldblogspoturl is available to register! Long ago, we observed this to be a problem with static pages . It appears that this is a problem with both dynamic and static pages, for some blogs, when renamed.
What Blogger won't tell you