I’m using Yarpp for years, but there are months that i’ve been receiving a lot of errors in my Nginx log file. The main error seems to be something with the MySQL syntax.

[Using dummy information about website and removing IP numbers for security reasons]

FastCGI sent in stderr: "PHP message: WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"wp_yarpp_related_cache"' at line 1 for query SHOW TABLES LIKE "wp_yarpp_related_cache" made by require_once('wp-admin/admin.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, yarpp_init, YARPP->__construct, YARPP->enforce, YARPP->activate, YARPP->enabled, YARPP_Cache_Tables->is_enabled, YARPP_DB_Schema->cache_table_exists" while reading response header from upstream, client: [IP NUMBER REMOVED], server: website.com.br, request: "GET /wp-admin/options-general.php?page=yarpp HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.4-fpm.sock:", host: "website.com", referrer: "https://website.com/wp-admin/index.php"

Searched all over the internet without succes to know if there’s a problem with my server configuration, some bug with another plugin or a Yarpp problem.

Also tried to make clean reinstall of the plugin, and also get the same errors.

Using MySQL 8, NGINX 1.18.0, PHP 7.4.