Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /home/sbessonov/sbessonov.ru/docs/wp-content/plugins/lead-form-builder/block/app.php:16 Stack trace: #0 /home/sbessonov/sbessonov.ru/docs/wp-content/plugins/lead-form-builder/block/app.php(87): Lead_Form_Builder_Blocks->__construct() #1 /home/sbessonov/sbessonov.ru/docs/wp-includes/class-wp-hook.php(324): lead_form_builder_block_init('') #2 /home/sbessonov/sbessonov.ru/docs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 /home/sbessonov/sbessonov.ru/docs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /home/sbessonov/sbessonov.ru/docs/wp-settings.php(643): do_action('init') #5 /home/sbessonov/sbessonov.ru/docs/wp-config.php(89): require_once('/home/sbessonov...') #6 /home/sbessonov/sbessonov.ru/docs/wp-load.php(50): require_once('/home/sbessonov...') #7 /home/sbessonov/sbessonov.ru/docs/wp-blog-header.php(13): require_once('/home/sbessonov...') #8 /home/sbessonov/sbessonov.ru/docs/index.php(17): require('/hom in /home/sbessonov/sbessonov.ru/docs/wp-content/plugins/lead-form-builder/block/app.php on line 16