Fatal error: Uncaught Error: Call to undefined function nfw_fc_metrics() in /var/www/html/wp-content/plugins/ninjafirewall/lib/class-firewall-log.php:147
Stack trace:
#0 /var/www/html/wp-content/plugins/ninjafirewall/lib/helpers.php(864): NinjaFirewall_log::write('User enumeratio...', 'author_name=chr...', 2, 0, Array, '/var/www/html/w...')
#1 /var/www/html/wp-includes/class-wp-hook.php(341): nfw_query(Object(WP_Query))
#2 /var/www/html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#3 /var/www/html/wp-includes/plugin.php(570): WP_Hook->do_action(Array)
#4 /var/www/html/wp-includes/class-wp-query.php(1906): do_action_ref_array('pre_get_posts', Array)
#5 /var/www/html/wp-includes/class-wp-query.php(3958): WP_Query->get_posts()
#6 /var/www/html/wp-includes/class-wp.php(704): WP_Query->query(Array)
#7 /var/www/html/wp-includes/class-wp.php(824): WP->query_posts()
#8 /var/www/html/wp-includes/functions.php(1343): WP->main('')
#9 /var/www/html/wp-blog-header.php(16): wp()
#10 /var/www/html/index.php(17): require('/var/www/html/w...')
#11 {main}
  thrown in /var/www/html/wp-content/plugins/ninjafirewall/lib/class-firewall-log.php on line 147