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I see more of this error these days in error_log. I see that someone asked this question here a year ago but no solution. Please advise what is causing this issue. Already, tried deactivating some plugins like w3total cache, disabled a few options like minify on w3total cache but nothing helped. Also, the site is using cloudfront, optimized. please advise.

WordPress database error Deadlock found when trying to get lock; try restarting transaction for query DELETE FROM `wp_options` WHERE `option_name` = 'rewrite_rules' made by require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('wp_loaded'), call_user_func_array, WP_Rewrite->flush_rules, delete_option, W3_Db->query, W3_DbCache->query, W3_DbCallUnderlying->query, W3_Db->query, W3_DbProcessor->query, W3_Db->default_query
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