Plugin not saving the Plariarism result in post metadata

I am a premium user of the plugin. Plugin checks for the Plagiarism and shows results. But once you refresh the page, results are gone. These results are not being saved in the DB.
WP version – 5.8.1
Editor – Gutenberg
Theme – 2021 default theme.
No other plugins are active.

I see there is a w function in the js file(sst.fn.new.js). I guess w(resp.data); should be called inside doRequest() function.
And in action.php, in the last $_POST[‘sst_post_meta’]
sanitize_text_field for array is not working. You need to encode it and send it as json.

Let me know If I can fork your repo and create a PR with these changes?