Fatal error: Uncaught Error: Call to undefined function Gutenberg_Templates\add_action() in /var/www/andovercg/staging/wp-content/plugins/ultimate-addons-for-gutenberg/lib/gutenberg-templates/ast-block-plugin-loader.php:91 Stack trace: #0 /var/www/andovercg/staging/wp-content/plugins/ultimate-addons-for-gutenberg/lib/gutenberg-templates/ast-block-plugin-loader.php(47): Gutenberg_Templates\Ast_Block_Plugin_Loader->__construct() #1 /var/www/andovercg/staging/wp-content/plugins/ultimate-addons-for-gutenberg/lib/gutenberg-templates/ast-block-plugin-loader.php(176): Gutenberg_Templates\Ast_Block_Plugin_Loader::get_instance() #2 {main} thrown in /var/www/andovercg/staging/wp-content/plugins/ultimate-addons-for-gutenberg/lib/gutenberg-templates/ast-block-plugin-loader.php on line 91