Our website has 104,000 indexed pages on Google however a good chunk of these indexed pages are empty breadcrumb URL's with no content on the pages. There is no 404 error or redirect on these pages, just our HTML template without any visible content. Also, when we remove an item from our website it stays on Google and directs to the empty page. I believe this is where the root of the problem occurs. Should we be telling the SERPs to also de-index our pages when we remove items from our website and if so, how can this be done sooner rather than later?
We are using a custom built CMS from scratch. I am not a programmer but I can pass on the information to our programmer who can perhaps put some more work into the breadcrumbs or robots.txt file if that's what is required to resolve this.
With these empty pages removed from Google's index we are hoping that the overall SEO will improve on our website too.