@anonim06
Sorry to hear about your site’s ranking drop. So far, no issues have been reported about the plugin that may affect your site’s ranking on search engines. Google rankings (and the traffic it generates) depend on over 200 ranking factors such as server load, page speed, cache configuration, mobile versions, responsiveness, and the site’s content.
We’d recommend you check whether you made any important changes to your website at the time the organic traffic to your site began to go down and consult your Google Search Console account for the possible crawl and index issues.