Fatal error: Uncaught Error: Class 'WP_HTML_Tag_Processor' not found in /home/users/2/architex01/web/architex/wp/wp-includes/blocks/gallery.php:80 Stack trace: #0 /home/users/2/architex01/web/architex/wp/wp-includes/class-wp-block.php(258): block_core_gallery_render(Array, '\n<figure class=...', Object(WP_Block)) #1 /home/users/2/architex01/web/architex/wp/wp-includes/blocks.php(1072): WP_Block->render() #2 /home/users/2/architex01/web/architex/wp/wp-includes/blocks.php(1110): render_block(Array) #3 /home/users/2/architex01/web/architex/wp/wp-includes/class-wp-hook.php(308): do_blocks('<!-- wp:paragra...') #4 /home/users/2/architex01/web/architex/wp/wp-includes/plugin.php(205): WP_Hook->apply_filters('<!-- wp:paragra...', Array) #5 /home/users/2/architex01/web/architex/wp/wp-includes/post-template.php(255): apply_filters('the_content', '<!-- wp:paragra...') #6 /home/users/2/architex01/web/architex/wp/wp-content/themes/architex/single.php(69): the_content() #7 /home/users/2/architex01/web/architex/wp/wp-includes/template-l in /home/users/2/architex01/web/architex/wp/wp-includes/blocks/gallery.php on line 80