aneimo

My problem was solved when I set define( 'QM_ENABLE_CAPS_PANEL', false ) in wp-config.php Acording Query Monitor documentation: “The user capabilities panel is not enabled by default because it can cause performance issues on sites that perform a large number of user capability checks.”. But… Before WordPress 6.8, there were no problems on the same site even when define( 'QM_ENABLE_CAPS_PANEL', true ) was enabled. The error has only appeared since WordPress 6.8