Error line 24

I downloaded this plug in but it’s now locked me out of being able to log in to remove the plug-in.
I am getting this error message:

Fatal error: Uncaught Error: Call to undefined function register_block_type() in /home/customer/www/naylors.co.uk/public_html/app/plugins/document-emberdder/blocks.php:24 Stack trace: #0 /home/customer/www/naylors.co.uk/public_html/wp/wp-includes/class-wp-hook.php(286): PPV_Block->enqueue_script('') #1 /home/customer/www/naylors.co.uk/public_html/wp/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /home/customer/www/naylors.co.uk/public_html/wp/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /home/customer/www/naylors.co.uk/public_html/wp/wp-settings.php(450): do_action('init') #4 /home/customer/www/naylors.co.uk/public_html/wp-config.php(98): require_once('/home/customer/...') #5 /home/customer/www/naylors.co.uk/public_html/wp/wp-load.php(42): require_once('/home/customer/...') #6 /home/customer/www/naylors.co.uk/public_html/wp/wp-blog-header.php(13): require_once('/home/customer/...') #7 /home/customer/www/naylors.co.uk/public_html/index.php(11): require('/home/customer/...') #8 {main in /home/customer/www/naylors.co.uk/public_html/app/plugins/document-emberdder/blocks.php on line 24

The page I need help with: [log in to see the link]