I tried to define my button with Sandboxed WordPress with the plugin?Gutenberg Blocks Library & Toolkit – Editor Plus:
Fatal error: Uncaught Error: Class “DOMXPath” not found in /wordpress/wp-content/plugins/editorplus/includes/class-editorplus-styles-manager.php:85 Stack trace: #0 /wordpress/wp-includes/class-wp-hook.php(2): EditorPlus_Styles_Manager->prepare_blocks_for_styles(‘\n<div class=” w…’, Array) #1 /wordpress/wp-includes/plugin.php(2): WP_Hook->apply_filters(‘\n<div class=” w…’, Array) #2 /wordpress/wp-includes/class-wp-block.php(2): apply_filters(‘render_block’, ‘\n<div class=” w…’, Array, Object(WP_Block)) #3 /wordpress/wp-includes/class-wp-block.php(2): WP_Block->render() #4 /wordpress/wp-includes/blocks.php(2): WP_Block->render() #5 /wordpress/wp-includes/blocks.php(2): render_block(Array) #6 /wordpress/wp-includes/class-wp-hook.php(2): do_blocks(‘<!– wp:heading…’) #7 /wordpress/wp-includes/plugin.php(2): WP_Hook->apply_filters(‘<!– wp:heading…’, Array) #8 /wordpress/wp-includes/blocks/post-content.php(2): apply_filters(‘the_content’, ‘<!– wp:heading…’) #9 /wordpress/wp-includes/class-wp-block.php(2): render_block_core_post_content(Array, ‘<!– wp:heading…’, Object(WP_Block)) #10 /wordpress/wp-includes/class-wp-block.php(2): WP_Block->render() #11 /wordpress/wp-includes/blocks.php(2): WP_Block->render() #12 /wordpress/wp-includes/blocks.php(2): render_block(Array) #13 /wordpress/wp-includes/block-template.php(2): do_blocks(‘<!– wp:templat…’) #14 /wordpress/wp-includes/template-canvas.php(2): get_the_block_template_html() #15 /wordpress/wp-includes/template-loader.php(2): include(‘/wordpress/wp-i…’) #16 /wordpress/wp-blog-header.php(2): require_once(‘/wordpress/wp-i…’) #17 /wordpress/index.php(2): require(‘/wordpress/wp-b…’) #18 {main} thrown in?/wordpress/wp-content/plugins/editorplus/includes/class-editorplus-styles-manager.php?on line?85
