Hi @chinnasamy
We’re sorry to hear that the SEO data optimization process failed to complete on your end.
Can you please try resetting our indexables in the database tables by following the steps below?
1. Install & activate the?Yoast Test Helper plugin
2. Go to Tools > Yoast Test
3. Locate the Yoast SEO section and click on the ‘Reset indexables tables & migrations’, ‘Reset Prominent words calculation’, and ‘Reset Internal link counter’ buttons. After each click, the page will reload to confirm that each reset was successful. Note: Resetting the optimization doesn’t undo any of the hard work you’ve put into the plugin as the SEO data is also stored in WordPress’ default tables. It’ll just reset the custom Yoast tables that contain the combined data pulled from those default tables.
4. Go to SEO > Tools, and under SEO data, click the “Start SEO data optimization” button to allow Yoast to rescan your?content.
If it still doesn’t complete, could you open your browser’s console and check for any JavaScript errors in red and send us a screenshot? You can use a site such as snipboard.io to upload a screenshot and share a link here.
You can also refer to this article for more information – https://yoast.com/help/we-couldnt-complete-the-optimization-of-your-seo-data/