Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/user2036083/www/leva.by/wp-content/plugins/polylang/include/rest-request.php:81 Stack trace: #0 /home/user2036083/www/leva.by/wp-content/plugins/polylang/include/class-polylang.php(263): PLL_REST_Request->init() #1 /home/user2036083/www/leva.by/wp-includes/class-wp-hook.php(308): Polylang->init('') #2 /home/user2036083/www/leva.by/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #3 /home/user2036083/www/leva.by/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /home/user2036083/www/leva.by/wp-settings.php(486): do_action('plugins_loaded') #5 /home/user2036083/www/leva.by/wp-config.php(79): require_once('/home/user20360...') #6 /home/user2036083/www/leva.by/wp-load.php(50): require_once('/home/user20360...') #7 /home/user2036083/www/leva.by/wp-blog-header.php(13): require_once('/home/user20360...') #8 /home/user2036083/www/leva.by/index.php(17): require('/home/user20360...') #9 {main} thrown in /home/user2036083/www/leva.by/wp-content/plugins/polylang/include/rest-request.php on line 81