Change labels from pages in the top. How to be?

Question

Search Engine Optimization

A week ago, I started indexing in mail, a day later I changed labels on almost all pages (example.com/label/), over the past 24 hours, many pages have been indexed and hit the top for some queries, but the labels remain old and issue 404 upon transition (because . there are no pages with this address). What can I do to avoid lowering the trust and losing site traffic?

Answer 1

301 redirects from old shortcuts to new ones. Page by page. Urgently.