Fatal error: Uncaught Error: Class "WP_Block_Parser_Block" not found in /htdocs/wp-includes/class-wp-block-parser.php:312
Stack trace:
#0 /htdocs/wp-includes/class-wp-block-parser.php(330): WP_Block_Parser->freeform('WooCommerce')
#1 /htdocs/wp-includes/class-wp-block-parser.php(102): WP_Block_Parser->add_freeform()
#2 /htdocs/wp-includes/class-wp-block-parser.php(69): WP_Block_Parser->proceed()
#3 /htdocs/wp-includes/blocks.php(2226): WP_Block_Parser->parse('WooCommerce')
#4 /htdocs/wp-includes/blocks.php(1820): parse_blocks('WooCommerce')
#5 /htdocs/wp-includes/formatting.php(5200): filter_block_content('WooCommerce', Array, Array)
#6 /htdocs/wp-includes/class-wp-hook.php(324): wp_pre_kses_block_attributes('WooCommerce', Array, Array)
#7 /htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters('WooCommerce', Array)
#8 /htdocs/wp-includes/kses.php(946): apply_filters('pre_kses', 'WooCommerce', Array, Array)
#9 /htdocs/wp-includes/kses.php(754): wp_kses_hook('WooCommerce', Array, Array)
#10 /htdocs/wp-admin/includes/plugin.php(188): wp_kses('WooCommerce', Array)
#11 /htdocs/wp-admin/includes/plugin.php(114): _get_plugin_data_markup_translate('woocommerce/woo...', Array, true, true)
#12 /htdocs/wp-content/plugins/mailpoet/mailpoet.php(64): get_plugin_data('/htdocs/wp-cont...')
#13 /htdocs/wp-settings.php(526): include_once('/htdocs/wp-cont...')
#14 /htdocs/wp-config.php(85): require_once('/htdocs/wp-sett...')
#15 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...')
#16 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...')
#17 /htdocs/index.php(17): require('/htdocs/wp-blog...')
#18 {main}
thrown in /htdocs/wp-includes/class-wp-block-parser.php on line 312