It took about 4 days to get many listings to return to SERPs, at lower positions. Those lower positions cost us some traffic, but within 2 weeks, those positions started improving significantly. By the 2 month mark, we were at about the same approximate rankings and traffic volume.
Thanks for your response.
No, theme doesn’t include SEO, and it’s been working great for a couple of years until recently. Caches were cleared. We deactivated all plugins and the only thing that triggered failure was activating AIOWP.
Because of the error in Search Console and the critical drop in rankings, we’ve decided to remove the plugin completely.