matebe

Hi,

as I wrote, when the plugin is turned off the search works, after switching on it does not work … :

Warning: mysqli_query (): MySQL server has gone away in /var/www/dev.youtab.pl/wp-includes/wp-db.php on line 2030

Warning: mysqli_query (): Error reading result set’s header in /var/www/dev.youtab.pl/wp-includes/wp-db.php on line 2030

Warning: mysqli_real_connect (): (HY000 / 2002): Connection refused in /var/www/dev.youtab.pl/wp-includes/wp-db.php on line 1633
Connection refused

An error occurred while reconnecting to the database
This means that we have lost connection to the database on the localhost server. It is possible that the database server has stopped working.

Is the database server up?
Is the database server currently extremely overloaded?
If you are not sure what these phrases mean, probably contact your hosting provider. If you still need help, visit the WordPress Help Forum.

Notice: The wpdb function was called incorrectly. wpdb must have a database connection set up to use escaping. Learn more: Debugging in WordPress. (This message was added in version 3.6.0.) In /var/www/dev.youtab.pl/wp-includes/functions.php on line 4986

@mihail-barinov

Yes – there is AND logic, but there is such a product:
https://youtab.pl/folie-i-szkla-ochronne/huawei/p20-lite/szklo-hartowane-3d-panzerglass

and even if not found, it should not cause a database connection error. You can compare with a search link in all product types

https://youtab.pl/?s=panzerglass+szk%C5%82o+hartowane+p20

It does not generate results, because it is not programmed in the template, but does not cause an error with the database