Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\krustpilsbaznica.lv\public_html\wp-content\plugins\any-mobile-theme-switcher\any-mobile-theme-switcher.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\krustpilsbaznica.lv\public_html\wp-content\plugins\any-mobile-theme-switcher\any-mobile-theme-switcher.php on line 19