Fatal error: Uncaught Error: Call to undefined function add_action() in /usr/home/akademiabiegania/domains/42k.com.pl/public_html/wp-content/plugins/cookie-warning/cookie-warning-options.php:3
Stack trace:
#0 {main}
  thrown in /usr/home/akademiabiegania/domains/42k.com.pl/public_html/wp-content/plugins/cookie-warning/cookie-warning-options.php on line 3