Uncaught Error: Call to a member function get_component() on null

Got this error message sent to me by e-mail with the latest updated version. Bits of it is in Swedish, but hopefully that part is not that important. What was changed in this version? Everything ran well before..

Ett fel av typen E_ERROR uppstod på rad 35 i följande fil: /var/www/html/app/plugins/query-monitor/output/headers/php_errors.php. Felorsak: Uncaught Error: Call to a member function get_component() on null in /var/www/html/app/plugins/query-monitor/output/headers/php_errors.php:35
Stack trace:
#0 /var/www/html/app/plugins/query-monitor/output/Headers.php(14): QM_Output_Headers_PHP_Errors->get_output()
#1 /var/www/html/app/plugins/query-monitor/dispatchers/Redirect.php(35): QM_Output_Headers->output()
#2 /var/www/html/wp-includes/class-wp-hook.php(287): QM_Dispatcher_Redirect->filter_wp_redirect('/wp-admin/uploa...', 302)
#3 /var/www/html/wp-includes/plugin.php(206): WP_Hook->apply_filters('/wp-admin/uploa...', Array)
#4 /var/www/html/wp-includes/pluggable.php(1257): apply_filters('wp_redirect', '/wp-admin/uploa...', 302)
#5 /var/www/html/wp-admin/upload.php(207): wp_redirect('/wp-admin/uploa...')
#6 {main}
 thrown