PHP Warning: Use of undefined constant

Hi There!

We have been receiving these warnings for over two years now. In the meantime we have even changed the theme and are now using Generate Press.

[27-Mar-2022 08:54:43 UTC] PHP Warning:  Use of undefined constant DB_USER - assumed 'DB_USER' (this will throw an Error in a future version of PHP) in /kunden/xx/webseiten/hello-world.net/wordpress/wp-content/plugins/query-monitor/wp-content/db.php on line 146
[27-Mar-2022 08:54:43 UTC] PHP Warning:  Use of undefined constant DB_PASSWORD - assumed 'DB_PASSWORD' (this will throw an Error in a future version of PHP) in /kunden/xx/webseiten/hello-world.net/wordpress/wp-content/plugins/query-monitor/wp-content/db.php on line 146
[27-Mar-2022 08:54:43 UTC] PHP Warning:  Use of undefined constant DB_NAME - assumed 'DB_NAME' (this will throw an Error in a future version of PHP) in /kunden/xx/webseiten/hello-world.net/wordpress/wp-content/plugins/query-monitor/wp-content/db.php on line 146
[27-Mar-2022 08:54:43 UTC] PHP Warning:  Use of undefined constant DB_HOST - assumed 'DB_HOST' (this will throw an Error in a future version of PHP) in /kunden/xx/webseiten/hello-world.net/wordpress/wp-content/plugins/query-monitor/wp-content/db.php on line 146

thnx for helping
Nick

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